Select the correct answer from each drop down menu.
Specialized cells such as white blood cells interact with foreign particles in the body. A particular cell belonging to the category recognizes bacteria and forms a covering around it, pinching off the vacuole. The cell then performs 1.______ . The foreign particles recognized by the particular type of cells differ from one’s recognized by another type of white blood cell. The situation indicates that the receptors are 2._______.
Options 1. Endocytosis
Exocytosis
Diffusion
Option 2. The same for all the cells, specific for the cells, never present on cells
Answers
Endocytosis and Receptors are particular to the cells are the right selections .The immune system's white blood cells have specific functions.
Why do white blood cells in the immune system have certain roles to play?The immune system's white blood cells have specific functions. They are essential in keeping the body safe from outside threats like bacteria. This is accomplished by them recognizing the bacteria and forming a coating around it that pinches off the vacuole. This results in a process known as endocytosis being carried out by the cell ( specifically phogocytosis).White blood cells have very unique receptors that they can bind to. As a result, they can distinguish between different foreign substances. For instance, B-cells create antibodies that attach to particular antigens (foreign proteins) and so trigger a particular immune response. To put it another way, a certain type of white blood cell may distinguish a certain foreign substance. This shows that these cells have specialized receptors.To learn more about White blood cells refer to:
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Related Questions
what might be the possible mechanism for the effect of gymnema on the perception of taste
Answers
The effect of gymnema on the perception of taste is that it leads to a change in the way an individual will perceive the food.
What is the effect of gymnema on the perception of taste?The term "destroyer of sugar" is the gymmama. Gymnema is now utilized to treat diabetes, metabolic syndrome, obesity, cough, and In addition, it is employed as a diuretic, digestive stimulant, laxative, and antidote for snakebites in addition to treating malaria. Miraculin binds to the receptors for sweetness when taste buds are exposed to it.
Acidic foods that are typically sour in flavor, like citrus, are perceived as sweet as a result. The impact can last up to an hour. Gymnema sylvestre is a taste modulator that prevents sucrose and other sugars from triggering the tongue's sweet receptors. It also effectively illustrates a few key principles of gustatory sensation in a dramatic, trustworthy, and reversible manner.
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a group of organisms that can breed and produce fertile offspring is known as a ...
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A group of organisms that can breed and produce fertile offspring is known as a specise.
A species is a collection of unique organisms that interbreed and give birth to healthy offspring. This definition states that two species are distinct from one another when, in the wild, it is impossible for individuals of the two species to mate and have fruitful offspring.
When a group of organisms can interbreed or exchange DNA and consists of individuals with similar traits, that group of organisms is referred to as a "species." The species, which also functions as a taxonomic rank, is the most fundamental classificational unit in biology. The biological classification system's second taxonomic rank after an individual is called a genus.
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Blood pressure is usually measured in the ________ artery with a sphygmomanometer.
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How many of the following can be used to distinguish a nematode worm from an annelid worm?
1. type of body cavity
2. number of muscle layers in the body wall
3. presence of segmentation
4. number of embryonic tissue layers
5. shape of worm in cross-sectional view • a) one of these
• b) two of these
• c) three of these
• d) five of these
Answers
Answer: three of these
Explanation: hope this helps :)
Answer:
C: Three of these
Explanation:
I looked it up.
epidemiologists have specialized expertise directly applicable to policy development. accordingly, which of the statements) about epidemiologists is/are correct?
Answers
1. They can provide quantitative evidence for proposed health strategies.
2. Can take an objective approach to data collection
3. Can provide comments on the need for health policy efficacy
Who are epidemiologists?Epidemiologists are on the field assessing disease outbreaks and other potential threats. Epidemiologists, sometimes known as "Disease Detectives," seek out the cause of a disease, identify those who are at risk, and determine ways to control or stop the spread of the disease or prevent it from occurring again. "Disease Detective" training is regularly provided to physicians, veterinarians, biologists, and other health professionals.
What exactly do epidemiologists do?Disease detectives, like investigators at a crime scene, begin by looking for clues. They collect information in a systematic manner, asking questions such as:
Who is sick?What are their signs and symptoms?When did they become ill?Where may they have gotten caught?Epidemiologists study the answers to these questions using statistical analysis to identify how a particular health problem originated.
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Write a testable question that could be used to further investigate the topic of stimulus-response time.
Answers
Does muscle memory facilitate quicker reaction times? is a a testable question that could be used to further investigate the topic of stimulus-response time.
Define reaction time.
Reaction time is the amount of time it takes for someone to react to a stimuli. Since it takes time for the information to travel from your hand to your brain, where it is processed, and then a response is started, there may be a brief delay between touching something that is really cold and taking your hand away.
Your arm should be extended as you hold the ruler's top. You should have your fingers on the largest measurement. Ask a buddy to hold the ruler between their fingers with their thumb and index finger placed at the bottom. Drop the ruler, then mark the distance on it where the other person's fingers are. Repeat this for every participant. Allow three tries for each person, then calculate the average.
The individual who reacts most quickly is the one who successfully catches the ruler at its lowest measurement because the sooner the ruler is caught, the less time it has had to fall. Our eyes see that the ruler has been dropped, alerting the brain, which then instructs the arm and hand muscles to grab the ruler. These messages move really swiftly because to our body's advanced intelligence.
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Plants are dependent on water. In most plants, water is absorbed by the roots and then moves up the stem of the plant and into the leaves by capillary action. The tissue responsible for moving the water throughout the plant is
Answers
Answer:
The tissue responsible for moving the water throughout the plant is the xylem
in multiple sclerosis the myelin sheaths around the axons of the brain and spinal cord are damaged and demyelination results. how does this disease manifest at the level of the action potential? i) action potentials move in the opposite direction on the axon. ii) action potentials move more slowly along the axon. iii) no action potentials are transmitted. in multiple sclerosis the myelin sheaths around the axons of the brain and spinal cord are damaged and demyelination results. how does this disease manifest at the level of the action potential? i) action potentials move in the opposite direction on the axon. ii) action potentials move more slowly along the axon. iii) no action potentials are transmitted. only i only ii only iii only ii and iii request answer
Answers
This attack causes inflammation and injury to the nerve sheath and ultimately to the surrounding nerve fibers. The process can result in multiple areas of scarring.
When the myelin sheath is damaged, the nerves do not conduct electrical impulses normally. Sometimes nerve fibers are also damaged. If the sheath can be repaired and regenerated, normal nerve function can return. However, if the sheath is severely damaged, the underlying nerve fiber may die. Your bodys immune system produces inflammatory substances that damage myelin and eventually kill the cells, oligodendrocytes, and Schwann cells that produce myelin. Where the myelin is attacked determines your symptoms. The destruction of the myelin sheath is called demyelination. Axonal demyelination leads to an increase in the refractory period for propagation of the action potential. Computer simulations were used to investigate the mechanism by which changes in the passive properties of the internodal membrane increase the refractory period.
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1. What makes Charles Darwin an important person to learn about?
Answers
Answer: Charles Darwin is an important person to learn about because he is the scientist who developed the theory of evolution by natural selection. This theory explains how species change over time through the process of natural selection, where individuals with traits that are better suited to their environment are more likely to survive and reproduce.
Darwin's theory of evolution by natural selection has had a profound impact on the scientific understanding of the natural world, and it is considered to be one of the most important scientific theories of all time. It has been supported by a vast body of scientific evidence and has helped to explain a wide range of phenomena in biology, including the diversity of life on Earth and the adaptations of organisms to their environment.
In addition to his contributions to science, Darwin is also an important figure in the history of science. He was one of the first scientists to systematically study and document the process of evolution, and his work laid the foundation for many of the advances that have been made in the field of biology over the past 150 years. His ideas have also had a significant impact on other fields, including psychology, sociology, and anthropology. As such, learning about Charles Darwin and his contributions to science can help us to better understand the natural world and the forces that shape it.
Most of life on Earth depends on which of the following? *
O
animals that eat plants
O photosynthetic organisms
O animals that eat other animals
O consumers on the second trophic level
Answers
Answer:
Explanation:
B photosynthetic organisms did the exam good luck
after a fracture, during which stage or phase of bone healing is devitalized tissue removed and new bone reorganized into its former structural arrangement?
Answers
Remodeling, When does new bone get restructured into its original structural configuration throughout the stage and phase or bone healing after fracture?
New bone: What is it?Fundamentally, "fine bone china" is made with the addition of bone ash. Although new bone products are not as light or translucent as fine bone china, they are whiter, finer, and more enduring than porcelain or fine china due to their calcium oxidecalcium oxide in them.
What making new bone called?The process by which bones are formed is known as osteogenesis or bone ossification. The start of this process occurs during the sixth and seven weeks early embryonic development, and it lasts until roughly age twenty-five, however the exact age varies slightly depending on the person.
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Which of the following can lead to cancer?
A. a disruption in the cell cycle
B a cell entering the G0
C. A cell never leaving G0
D. The death of a cell
Answers
The option that can lead to cancer is a disruption in the cell cycle (option A).
What causes cancer?Cancer is a disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.
Cell cycle is the life cycle of eukaryotic cells from a quiescent beginning, growth, duplication of DNA followed by mitosis and division. The period of time in the cell cycle when nothing is happening is known as the G0 phase i.e. inactivity.
Cancer is a genetic disorder. It happens when genes that manage cell activity mutate and create abnormal cells that divide and multiply, eventually disrupting how the body works.
Therefore, disruption or alteration in the normal procedure of the cell cycle can lead to cancer.
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which of the following represents the most likely sequence of the evolution of plants? seedless vascular plants, angiosperms, gymnosperms, bryophytes, charophyceans charophyceans, seedless vascular plants, bryophytes, angiosperms, gymnosperms bryophytes, charophyceans, gymnosperms, seedless vascular plants, angiosperms bryophytes, charophyceans, seedless vascular plants, angiosperms, gymnosperms charophyceans, bryophytes, seedless vascular plants, gymnosperms, angiosperms
Answers
Unlike angiosperms, or flowering plants, whose seeds are encased by fully developed , or fruits, gymno, or any vascular plant, reproduce by the use of an exposed seed, or ovule. Many gymnobear their seeds in cones, which are known as " seeds" because they are not visible until they are fully developed.
Tracheophyte predecessors, Rhynia-type plants, Psilophyton, and Gymnosperms are all descendants of chlorophytes. This is the right order. Because they discovered a method of moving materials throughout the plant body, seedless vascular plants achieved a significant advancement in plant evolution. Phloem is used by plants to transport sugars from photosynthesis, and xylem is used to carry water and minerals throughout the plant body. About 420 million years ago, the first vascular plants began to emerge. They most likely descended from bryophyte ancestors that resembled mosses, but their life cycle was dominated by the formation of diploid sporophytes. Early vascular plants changed over time, becoming more like plants in other ways as well.
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Our sense of taste originally was thought to involve only the following four
sensations
A) sweet, salty, starch, and bitter.
B) salty, fatty, bitter, and sweet.
C) sour, bitter, sweet, and starchy.
D) bitter, sweet, sour, and salty.
E) fruity, fatty, silky, and coarse.
Answers
Answer:
D) bitter, sweet, sour, and salty
Explanation:
Our sense of taste originally was thought to involve only the following four sensations: bitter, sweet, sour, and salty. These four sensations are the primary tastes that humans can detect, and they are thought to be the basis of our sense of taste. Other tastes, such as fat and umami (savory), are thought to be detected by other senses, such as touch and smell.
Answer: C
Explanation:
How do you do a Punnett square and how do you solve it?
Answers
if natural fires and herbivores can both reduce the abundance of competitively superior plants, how should this affect the number of other plant species that can persist in the community?
Answers
It can cause woody plants to proliferate and outcompete plants that have adapted to fire, reducing the number of plant species that can survive in the community.
Resources are often scarce in a habitat, and many species could compete for them. Plants in a garden, for example, may compete for soil nutrients, water, as well as light. Interspecific competition has a negative overall effect on both species involved. That is, if the other species did not exist, each species would fare better.
Interspecies competition occurs when two species compete for the same limited resource. Both species suffer as a result of competition. The ecological role of a species is defined by the set of conditions, resources, as well as interactions that it requires. According to the competitive exclusion principle, two species cannot coexist if they occupy the same niche.
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What environmental parameters would need to be monitored as DDT
Answers
Answer:
1. Soil and water samples for levels of DDT and its metabolites
2. Air samples for levels of DDT and its metabolites
3. Sediment samples for levels of DDT and its metabolites
4. Biological samples for levels of DDT and its metabolites
5. Surface water run-off for levels of DDT and its metabolites
6. Aquatic life for levels of DDT and its metabolites
7. Plant life for levels of DDT and its metabolites
8. Temperature and pH levels in the environment
9. Wind speed and direction
10. Rainfall levels
Which of the following best describes the result of meiosis? Select 3 that apply.
WILL GIVE BRAINLIEST
Answers
The result of the process of meiosis is that it produces increased genetic diversity due to crossing over.
The correct option is C.
What is meiosis?Meiosis is a type of cell division that results in the production of gametes or sex cells. Hence. meiosis is a form of cell division that occurs only during sexual reproduction.
During meiosis, the cells of the parent organism which have a pair of chromosomes or diploid number or 2n of chromosomes divide to produce the gametes which have the haploid number or n number of chromosomes.
Hence, the sex cells or gametes produced can fuse to form a zygote that has a pair of chromosomes or diploid number or 2n of chromosomes.
The process of meiosis results in genetic variation as it allows for the crossing over of genes, such that the genes of the offspring show a variation to that of the parents as well as among the offspring.
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(03.03 MC)
The diagram below shows two waves. At which letter (A-D) on the diagram is constructive
interference going to occur?
a
b
c
d
Answers
A and C is the letter where constructive interference going to occur.
What is constructive interference?
Constructive interference is a phenomenon that occurs when two waves of the same frequency meet and combine to create a single, larger wave. This larger wave is the result of the two waves amplifying each other due to their identical frequency. When this occurs, the combined wave is larger in magnitude than either of the individual waves. This can be observed when ripples of water come together on a body of water, or sound waves combine to create a louder sound. Constructive interference can also be seen in optics when light waves combine to create a more intense beam of light.
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Answer:c
Explanation:
because the highest point of the graph is c
5. Pick one food chain (with at least 3 organisms) and draw a trophic pyramid below. Include the organism
name, trophic level name and number, and the percentage of energy available at each level.
Answers
A trophic level is a place, level, or position within a food web, a food chain, or an ecological pyramid. The producers create the first trophic level as they generate food.
The main consumers make up the second trophic level.
The secondary consumers make up the third trophic level.
The tertiary consumers make up the fourth trophic level.
A food chain example is:Sun, grass, a grasshopper, an owl, a shrewThe grass is the producer in this instance, and the grasshopper is the main consumer.The shrew, or secondary consumer, further consumes the grasshopper.The owl, or the tertiary consumer, in turn eats up the shrew.For more information on food chain kindly visit to
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Passive transport is the movement of molecules across the cell membrane without requiring an input of cellular energy. identify which of these options are examples of passive transport.
a. do not require cellular energy to allow molecules to pass through the cell membrane.
b. do not require cellular energy because the kinetic energy of the molecules' movement will drive the movement down the concentration gradient.
c. do not require cellular energy because the molecules are small enough to fit through the membrane.
d. All of the above.
e. a and b
f. None of the above.
Answers
Answer:The correct answer is D. None of the above
Explanation:
describes the response of auditory nerve fibers that allows for the plausibility of the theory of frequency representation:
Answers
The cochlea sends information about sound stimuli to the cochlear nucleus of the brainstem via auditory nerve fibres.
Depending on whether receptor cell population in the cochlea is contacted, the neurons that give rise to these fibres can be split into two categories.
Basically, vibrations (sound signals) are transmitted to the brain via the auditory nerve. Remember that hearing sounds is made possible by several different parts of the ear, not just the auditory nerve. A number of additional ear components are also involved.
Some sensory systems that provide information that is relevant to motor functions are distinguished by a "spatial code" in addition to a "temporal code" because they display characteristics that are tailored to specific spatial directions. Examples include otolith and semicircular canal afferents, as well as muscle spindle afferents.
Complete question:
The volley principle first proposed by Weaver & Bray (1937)
describes the response of auditory nerve fibers that allows for the plausibility of the theory of frequency representation:
a) place code
b) temporal code
c) population code
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4) A hospital in Vienna noted that many of their female patients were dying of "childbed fever" after they had given
birth in the hospital. The rates of this fever were much higher in the hospital than they were for women who had given
birth at a different clinic. In fact, 10% of the women at the hospital contracted fever compared to 4% at the clinic.
Ignatz Semmelweis thought that the fever was being transmitted on the hands of doctors when they went from the
He asked the doctors to wash their hands and the number of cases of "childbed fever"
morgue to examine women.
He also noted that a doctor contracted the same fever after he cut himself with a scalpel that had been
were reduced.
used on an autopsy.
Semmelweis concluded that the fever was caused by some element that could be transferred from person to person.
REASONING: If fever is something that could be transferred from person to person, then...
Answers
Answer:
Explanation:
#
do all living things have the same number of genes?
Answers
The end outcome is the biodiversity we are familiar with today. However, it is impossible to directly compare species because their genes are varied and they do not all have the same number of genes.
Does each individual possess the same number of genes?Does everyone share a genome? Most people have a similar human genome. The genome does, however, contain variants. Differences in look and health are a result of this genetic variation, which makes up roughly 0.001 percent of each person's DNA.
Do all forms of life have genes?All plants and animals are composed of cells, and those cells contain genetic material in the form of genes and chromosomes (usually in the nucleus).
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PLS HELP!!!!
Which option best describes a scientific consensus?(1 point)
A. a general agreement among a few scientists that is supported by experimentation and investigation
B. an observation made by a scientist that is supported by experimentation and investigation
C. a general agreement among many scientists that is supported by evidence and reasoning
D. an observation made by a scientist that is supported by evidence and reasoning
_______________________________________________________
How is “lock and key” used to describe the action of enzymes? (1 point)
A. Enzymes are able to create gaps in cell walls that allow products to leave cells.
B. Enzymes have a shape that specifically fits the reactants, like a key in a lock.
C. Enzymes have a shape that specifically fits the reactants, like a key in a lock.
D. Enzymes have a shape that specifically fits the products, like a key in a lock.
Answers
The option that best describes a scientific consensus is a general agreement among many scientists that are supported by evidence and reasoning.
The correct option is C.
The lock and key model of enzyme catalysis is described as follows:
Enzymes have a shape that specifically fits the reactants, like a key in a lock.
The correct option is B.
What is a scientific consensus?A scientific consensus is a common agreement about a particular idea or theory that has achieved general acceptance among scientists.
A scientific consensus is arrived at after several corresponding experiments or research on a particular theory or idea by scientists all over the world.
When a scientific consensus is reached, the idea becomes a theory upon which other scientific ideas are based on and used to explain other ideas.
Enzymes are specific in their action and the mechanism of their action has been described using the lock and key model.
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Remote sensing data helps scientists improve their understanding and predictions about climate change.
a. True
b. False
Answers
Remote sensing data helps scientists improve their understanding and predictions about climate change. This is a true statement.
It allows for the monitoring of Earth's surface, oceans, and atmosphere at various spatiotemporal scales, enabling the study of processes or long- and short-term events related to the climate.
Remotele sensing photos, which are captured with specialised cameras, are used by scientists to "feel" the Earth. Examples include: We can see considerably more from the air and space than we can from the ground because of the cameras on satellites and aircraft that snap photographs of large swaths of the Earth's surface.
For example, isotope ratios, elemental analysis, biomarkers, and biogenic silica are examples of chemical proxy records. When combined, these proxies allow us to recreate the climate from hundreds of millions of years ago.
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Normal cells have a contact inhibition feedback mechanism that prevents the cells
from replicating when other cells are touched. A diagram of cells with contact
inhibition and cells without contact inhibition is shown.
Which statement best describes what will happen to cells in an organism that lack
contact inhibition?
ANSWER CHOICES
The cells will stop replicating once one layer is produced as other body cells will crowd them out.
The cells replicate into the food supply for each cell is used, causing each cell to die
The cells will continue to grow causing a tumor in the body
The cells will replicate normally replacing body cells that die
Answers
The statement that best describes what will happen to cells in an organism that lacks contact inhibition is that the cells will continue to grow to cause a tumor in the body.
The correct option is C.
Contact inhibition refers to a process by which cells that are growing when they come in contact with each other will stop the growth of more cells.
Contact inhibition is a form of feedback inhibition mechanism that enables cells to prevent the excessive growth of cells in the body.
Normal cells have a contact inhibition feedback mechanism. However, some cells lack this feedback mechanism of regulation. Hence, the cells have excessive growth resulting in the formation of tumors.
Examples of cells that lack this feedback mechanism of regulation are cancer cells.
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Physiological or psychological thinking was given official recognition in the 17th century when the Roman Church officially supported -----.
Answers
Physiological or psychological thinking was given official recognition in the 17th century when the Roman Church officially supported Cartesian dualism.
What is Cartesian dualism?The Cartesian dualism the view held by René Descartes that there are two different and incompatible classes of matter in the world. According to Cartesians, the mind is completely distinct from the physical body. The only trustworthy truths are believed to be found in the existence of a metaphysical mind, with sensation and the perception of reality thought to be the sources of falsehood and illusions.
According to René Descartes, who popularized the concept, there are two different types of foundations: mental and physical. According to this philosophy, the mind can exist independently of the body and the body is incapable of thought. In conclusion, ehen the Roman Church formally endorsed Cartesian dualism in the 17th century, physiological or psychological thinking received official recognition.
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Mendells theory of
genetics aplys to what
organism
Answers
Answer:
Pea plants
Explanation:
Mendelian Theory of Genetics In the 1860s, Mendel introduced theories of inheritance, based on his experimental work with pea plants. Before Mendel, most people believed inheritance was due to a blending of parental ‘essences’, much like how mixing blue and yellow paint will produce a green color.
the process during meiosis that mixes genetic material in both the fathers and mothers germ cells is called
Answers
the process during meiosis that mixes genetic material in both the fathers and mothers germ cells is called recombination.
What do independent assortment and recombination in meiosis mean?Recombination, a process that breaks and recombines bits of DNA to create new combinations of genes, takes place during meiosis. Maternal and paternal genes are fragmented during recombination, ensuring that genes assort independently of one another.
What is the recombination process?DNA fragments are broken and recombined during the recombination process to create novel allele combinations. The genetic variety that results from this recombination process at the gene level reflects variations in the DNA sequences of various species.
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