Answer:
organ system level of organization
cell>tissue >organ >organ system >multicellular organism
please mark as brainliest
What is the function of nervous tissue for transport within an organism?
a) To dilate your blood vessels so that you will faint
b) To construct your blood vessels so that you will pass out.
c) To send signals to the blood vessels to constrict or dilate, to decrease or increase blood flow, respectively.
d) To send signals to the guard cells to swell and close the stomata or constrict to open up the stomata
Answer:
c) To send signals to the blood vessels to constrict or dilate, to decrease or increase blood flow, respectively.
Explanation:
The nervous tissues comprises of nerve cells, which functions by sending and receiving electric signals as information in order to bring about specific responses.
The system majorly in charge of transport in the body is the circulatory system. Hence, the nerve cells send signals to the blood vessels to constrict or dilate, to decrease or increase blood flow, respectively.
There are two main process involved in producing a protein molecule from the information in DNA.
Drag each tile to the correct location on the diagram to show how these processes work. Not all tiles will be used.
There are two main process involved in producing a protein molecule from the information in DNA, the process of formation of RNA from DNA is transcription and from RNA to protein is translation.
In molecular biology, transcription and translation play crucial roles in protein synthesis. On the basis of a DNA template, a complementary RNA molecule is created during transcription.
The DNA strand is unravelled during transcription, and an RNA polymerase enzyme uses complementary base pairing to create an RNA molecule.
The messenger RNA (mRNA), a newly formed RNA molecule, transports the genetic information from the DNA to the ribosomes.
On the other hand, translation takes place at the ribosomes and entails converting the mRNA sequence into an amino acid sequence. Specific amino acids are delivered to the ribosomes by transfer RNA (tRNA) molecules, where their anticodons are matched with the complementary codons on the mRNA.
Until the ribosome reaches a stop codon, which indicates the completion of protein synthesis, this process continues.
Thus, the first process is transcription and the second is translation.
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Cell specialization is important during the growth and development of
a multicellular organism. This process is most directly regulated by
Answer:
Protein
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms.
Cell specialization is also referred to as cell differentiation and it can be defined as a biological process through which generic cells transform into specific cell types, so as to enable them perform certain functions within the body of a living organism.
Simply stated, it's the special function or job in the body of a living organism that are associated with cells.
Generally, cell specialization plays a significant role in the development of embryos.
Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Cell specialization is fundamental and key for the growth and development of a multicellular organism.
Furthermore, cell specialization as a process is most directly regulated by protein; one super regulating protein encourages cell differentiation while the other tries to stop or prevent the process. These proteins are referred to as master regulating proteins or Helix-Loop-Helix proteins.
Which organism obtains its energy exclusively from dead or decaying matter?
Answer:
Bacteria obtains energy from dead bodies of animals and plants.
Biology B (CR) (ACC. Ed)(Dixon) / Principles of Evolution
3. How many total, non-unique alleles are there for each gene in a population of 250 humans?
A 125
B 1000
C 500
D 250
Answer:
C. 500
Explanation:
Each human has 2 alleles, which you do 250*2, getting 500
what is menstruation and why does it occurs.
Answer:
Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, your body prepares for pregnancy. If no pregnancy occurs, the uterus, or womb, sheds its lining. The menstrual blood is partly blood and partly tissue from inside the uterus.
Which of the following molecules contains three phosphate groups?
A. AMP
B. ADP
C. APP
D. ATP
Answer:
D) ATP contains three phosphate groups.
OAmalOHopeO
Why are dogs color blind？
Answer:
It is caused by abnormalities in color-detecting molecules, known as cones, in the retina.
I hope this will help you
Skin Contact: In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.
Answer:
yes sir or maam because all types of skin can have germs
Explanation:
Answer: yes
Explanation: because all types of skin can have germs
The Krebs cycle is a series of chemical reactions that: Group of answer choices Metabolize acetyl-CoA and produce ATP, carbon dioxide, and hydrogen ions Metabolize lactate and produces pyruvate, ATP, and hydrogen ions Metabolizes water and produces ATP and hydrogen ions Metabolizes alcohol and produces ATP and water in the mitochondria Breaks fatty acids into two-carbon molecules
Answer:
Metabolize acetyl-CoA and produce ATP, carbon dioxide, and hydrogen ions.
Explanation:
Cellular respiration can be defined as a series of metabolic reactions that typically occur in the cells of living organisms, so as to produce energy in the form of adenosine triphosphate (ATP).
During cellular respiration, high energy intermediates are created which are then oxidized to make adenosine triphosphate (ATP). Also, the high energy intermediary products are produced at the glycolysis and citric acid cycle stage.
Glycolysis can be defined as a biological process that uses the energy released and stored during the Krebs cycle to form adenosine triphosphate (ATP). Thus, glycolysis is a series of chemical reactions that is typically used to break glucose into pyruvic acid.
Krebs cycle is also referred to as the citric acid cycle (TCA cycle) and it can be defined as a series of enzyme-catalyzed reactions used to release stored energy in most living organisms by metabolizing (oxidation) acetyl-CoA which are typically derived from proteins, carbohydrates, and fats.
This ultimately implies that, the Krebs cycle is a series of chemical reactions that metabolize acetyl-CoA and produce adenosine triphosphate (ATP), carbon dioxide, and hydrogen ions.
What is the most likely effect of freshwater pollution?
O A. Polluted groundwater lowers the porosity of the zone of
saturation.
O B. Invasive plants develop resistance to overused herbicides.
O C. Soil becomes contaminated, causing invasive plant species to
crowd out local species.
O D. Groundwater becomes overused, lowering the water table.
Answer:
c
Maybe this...
I think
The most likely effect of freshwater pollution is Soil becomes contaminated, causing invasive plant species to crowd out local species. Option C is correct.
Polluted groundwater can seep into the soil, contaminating it with harmful chemicals. These chemicals can then make their way into the food chain, harming both plants and animals. Invasive plant species are those that are not native to an area and can outcompete native species for resources. When soil is contaminated, it can create an environment that is more favorable for invasive plant species, which can then crowd out local species.
Polluted groundwater lowering the porosity of the zone of saturation, is not a direct effect of pollution. Invasive plants developing resistance to overused herbicides, is more likely to be caused by overuse of herbicides, not pollution. Groundwater becoming overused, lowering the water table, is a possible effect of pollution, but it is less likely than soil contamination. Option C is correct.
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“Red rust is one of the destructive diseases in tea plants which results adverse effect on tea yield. It is caused by a type of algae.” Which discipline of Biology is related to explain the above statement?
a) Mycology. b) Agronomy. c) Pathology. d) Phycology
Answer:
The correct answer is - c) Pathology.
Explanation:
Mycology is the branch of biology in which students study fungi and their characteristics including their biochemistry, taxonomy, and genetics.
Agronomy is the other branch of biology that deals with agriculture and its practices and work to improve the crops.
Phycology is the study of algae and their characteristics including their biochemistry, taxonomy, and genetics.
The disease and its causes are studied under the pathology branch o biology therefore, red rust would be studying in this discipline.
What does a vaccine contain?
1.T cells
2.infectious particles
3.antigens
4.antibodies
Answer:
Antigens
Explanation:
Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response within the body
Match the seven major evolutionary trends in animal body organization to its definition. Body Symmetry Cellular organization Body segmentation Cephalization Digestive Tract Appendages Body Support System A. animal body shape, whether radial or bilateral symmetry B. a collection of cells or whether it has tissues, organs, and organ systems C. specialization of distinct body regions; repetitive units D. a concentrated sensory structure at the anterior end of the animal E. a single opening or two openings to take in food and/or eject waste F. legs, tentacles, antennae, and fins G. skeletons or hydrostatic structures
Answer:
The answer is below
Explanation:
Considering the seven major evolutionary trends in animal body organization against the available definition, here is the final answer to the question.
1. Body Symmetry - A. animal body shape, whether radial or bilateral symmetry
2. Cellular organization - B. a collection of cells or whether it has tissues, organs, and organ systems
3. Body segmentation - C. specialization of distinct body regions; repetitive units
4. Cephalization - D. a concentrated sensory structure at the anterior end of the animal
5. Digestive Tract - E. a single opening or two openings to take in food and/or eject waste
6. Appendages - F. legs, tentacles, antennae, and fins
7. Body Support System - G. skeletons or hydrostatic structures
A large protein that passes through the nuclear pore must have an appropriate A)sorting sequence, which typically contains the positively charged amino acids lysine and arginine. B)sorting sequence, which typically contains the hydrophobic amino acids leucine and isoleucine. C)sequence to interact with the nuclear fibrils. D)Ran-interacting protein domain. Multiple Choice
Answer:
A)sorting sequence, which typically contains the positively charged amino acids lysine and arginine.
Explanation:
Protein sorting refers to the cellular process by which proteins are transported to their corresponding localizations both inside or outside the cell. A nuclear localization sequence (NLS) is a short amino acid signaling sequence that is able to mediate the transport of proteins into the nucleus. The proteins that are 'tagged' by an NLS sequence can pass through the nuclear envelope via nuclear pores. This sequence (NLS) is typically composed of protein motifs consisting of positively charged lysine (Lys) and arginine (Arg) amino acid residues, which are exposed on the protein surface. In consequence, the NLS sequence is recognized by the importin α/β heterodimer receptor, which transports the NLS-tagged protein into the nucleus. It has been shown that the deletion of the NLS sequence disrupts nuclear import, whereas the fusion of non-nuclear proteins with NLS sequences represents a useful strategy to introduce proteins into the nucleus.
Which relates the wavelength and frequency of a wave?
The frequency is the number of wavelengths that pass a fixed point in a second.
A wavelength is the distance on a wave between one frequency and the next.
The time it takes for one wavelength to pass a fixed point is the frequency.
The speed at which a wavelength travels is the frequency of the wave.
Answer:
The correct answer is - The frequency is the number of wavelengths that pass a fixed point in a second.
Explanation:
The wavelength of a wave is the distance between one point on a wave and the nearest point or one crest to another crest of a wave. The frequency of the wave is the number of wavelengths that pass a fixed point in a second. A period is the amount of time one wavelength requires to pass a point.
Frequency = 1/wavelength, which means if one increases other decreases.
Thus, the correct answer is - The frequency is the number of wavelengths that pass a fixed point in a second.
Answer: A
Explanation:
PLZZ HELP
Phosphorus is mainly found in the environment stored in
A. the atmosphere
OB. legumes
C. mineral deposits
D. denitrifying bacteria
Answers: I think it’s a or c
Explanation:
The diagram below shows stream gradient. How do you calculate stream
gradient?
Stream Gradient
Elevation
Difference
Horizontal Distance
w
O A. Elevation difference divided by horizontal distance
O B. Elevation difference times horizontal distance
O C. Horizontal distance divided by elevation difference
D. Horizontal distance minus elevation difference
Answer:
I think the answer is B.
Explanation:
sorry if i am wrong.
14). Clonal selection and differentiation of B cells activated by antigen exposure leads to the production of ________. A) large quantities of the antigen initially recognized B) vast numbers of B cells with random antigen-recognition receptors C) long-lived erythrocytes that can later secrete antibodies for the antigen D) short-lived plasma cells that secrete antibodies for the antigen
Answer:
The correct answer is D) short-lived plasma cells that secrete antibodies for the antigen
Explanation:
Each B lymphocyte has an antigen receptor (BCR: B cell receptor), a surface immunoglobulin (IgM or IgD), that binds to specific domains of the antigen called antigenic determinants or epitopes. Only B lymphocytes with a high antibody affinity for the antigen, and which are capable of processing and presenting it, will be positively selected. In this contact between the two cells, an exchange of chemical signals takes place that leads to the activation, clonal proliferation and differentiation of B cells into two sister subclones: one of antibody-secreting plasma cells, and the other of memory primed B cells. Therefore, only these last positively selected B lymphocytes will survive, proliferate and differentiate into plasma cells, synthesizing and secreting antibodies of a single isotypic class, with a unique specificity and high affinity, improving the ability to adhere to the antigen and, thus , neutralize and destroy pathogens.
Multiple species of lizard feed on insects in the Caribbean islands. One
species of lizard lives on the ground, while another lives on tree branches.
Which statement is true of these two lizard species?
A. They have adapted to different niches due to competition.
B. They have adapted to different niches due to predation.
C. They have a mutualistic relationship with the insect species.
O D. They have the same niche: the Caribbean islands.
The two species of lizards have adapted to different niches to avoid competition. Therefore, option"A" is correct.
What is an ecological niche?
An ecological niche is the particular habitat of a particular species in an ecosystem. The term was coined by Joseph Grinnell in 1917. The selection of a niche depends on the environmental condition, to avoid competition and availability of the food. The different types of niches are spatial niches, tropical niches, and hypervolume niches.
Habitat is defined as the coexistence of abiotic and biotic things. Examples of habitats are the ocean and forests. A niche whereas is an inclusive space occupied by species in a habitat.
The ecological niche is occupied by a species of organism to avoid competition.
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which provides long-term energy storage
I think it's a nuclear
Explanation:
nuclear energy has by far the highest capacity factor of any other energy source
QUE S T
b)
1
A supermarket chain advertises that its plastic carrier-
bags are 'environmentally friendly'. These bags are
made from polythene and contain added starch. A
student decided to find out if the claim is true. In the
investigation the student buried a piece of plastic from
the bag in a pot of soil and left it for one month. When
the plastic was dug up there were many small holes in
it.
The drawings show the plastic, as seen through a
microscope,
before and after being buried.
Starch
Hole
3
Plastic buried for 1 month
Plastic before being
buried
a) Explain, as fully as you can, the process that caused
the holes to appear in the plastic.
Answer:
The holes were formed from either.., bugs could have ate the starch and the polyethylene was not a deterrent?
It may be biodegradable because it is edible to bugs? I'm not sure that makes it completely biodegradable though.
https://www.livescience.com/58810-caterpillar-biodegrades-plastic-bags.html
copy and paste this link. Explains alot?
What does it mean for a human to express their genes?
Answer:
Gene expression is the process by which the instructions in our DNA are converted into a functional product, such as a protein. ... Gene expression is a tightly regulated process that allows a cell to respond to its changing environment.
what are the cells that pass from parents to their children
Answer:
Genes are the blueprint for our bodies. If a gene contains a change, it disrupts the gene message. Changes in genes can cause a wide range of conditions. Sometimes a changed gene is inherited, which means it is passed on from parent to child. Changes in genes can also occur spontaneously.
Based on how they each acted to the trials,witch substance (s)would most likely be metallic
Answer:
The answer should be C....and them unit test sure do suck no cap :,)
Explanation:
A woman discovers that her family has a history of a rare, X-linked genetic disorder that causes symptoms late in life. Her mother and father didn’t have the disease, but all three of her brothers do. What is the probability that the woman will have the disease as well?
A. 100%
B. 75%
C. 50%
D. 25%
E. 0%
Select the best description of amino acid metabolism: Group of answer choices Amino acid metabolism does not occur. Aerobic metabolism of amino acid requires deamination. Metabolism of amino acids is the primary source of energy during long-duration exercise. Metabolism of amino acids is the primary source of energy during short bursts of activity. Can reduce urea production from ammonia in the liver.
Answer:
Aerobic metabolism of amino acid requires deamination
Explanation:
Living system can be defined as the internal systems of organisms and how materials circulate within organisms.
Generally, these living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.
Some examples of living systems in organisms are respiratory system, nervous system, digestive system, and circulatory system.
Additionally, living systems comprises of the following components; cells, organs, muscle, tissues, blood, etc., which are typically used for carrying out various bodily functions such as respiration, digestion, metabolism, etc.
Metabolism can be defined as a set of chemical processes carried out by a living organism such as humans, plants and animals, in order to sustain life.
Aerobic (oxygen-using) metabolism can be defined as a biological process that typically involves the extraction of energy from any carbohydrate source such as amino acids, fatty acids, etc.
Basically, an aerobic metabolism of amino acid is a process that requires deamination.
Generally, proteins comprises of amino acids and it is responsible for maintaining the proper functioning of the body system.
Transamination can be defined as a biochemical process which typically involves the removal of amino groups from amino acids and transferring them to a ketoacid (amino acid without an amine group), so as to form new amino acids.
Basically, transamination is a reversible oxidation-reduction reaction that is responsible for the deamination of amino acids.
Which compound is known as end product of purine nucleotide metabolism? * Uric acid Carbonic acid Uronic acid Citric acid
cara meneutralkan cuka dengan menggunakan larutan natrium hidroksida
what is/are the function(s) of the cell cycle?
Answer:
Yea it's DNA replication
Explanation:
From g00gle:
" The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells. These processes define the two major phases of the cell cycle. "
