Answer:
The meaningful differences between organisms in a population are genetic. Variations in the genome of members of a population arise through mutation. Occasionally, a mutation occurs in an individual that is beneficial, that helps that organism be better able to survive and repoduce in its current environment.
WILL MAKE BRAINLIEST
Fill in the blank below with the word that best completes the sentence.
Natural selection leads to____
a process of change in a population over time.
Answer:
it is evolution
hope it helps
f an egg can move, what provides the energy for movement?
Question 7 options:
The uterus provides the energy for the movement of the cilia and fimbriae. The ovum itself is motile.
Fructose provides the energy for the movement of the cilia and fimbriae. The ovum itself is non-motile.
ATP provides the energy for the movement egg since the ovum itself is motile and self reliant.
ATP provides the energy for the movement of the cilia and fimbriae. The ovum itself is non-motile.
Answer:
ATP provides the energy for the movement egg since the ovum itself is motile and self reliant. ATP provides the energy for the movement of the cilia and fimbriae.
If the complex cholesterol- HRP would not be commercially available, use the knowledge you learnt and internet to determine an alternative way for detecting cholesterol.
Answer:
Classical chemical methods, enzymatic assays, gas chromatography (GC), liquid chromatography (LC), and mass spectrometry (MS)
Explanation:
Classical chemical methods, enzymatic assays, gas chromatography (GC), liquid chromatography (LC), and mass spectrometry (MS) are the alternate methods used for the detection of cholesterol. These methods are used when HRP would not be commercially available for the analysis or detection of cholesterol in the patient's body so these methods can be used for the purpose of detection of cholesterol.
Which is not true regarding the mammalian cardiac cycle
Group of answer choices
both atria contract at roughly the same time, and then the ventricles
relaxation, or filling, phase is called diastole
the semilunar valve is the usual pacemaker
contraction, or pumping, phase is called systole
Besides oxygen exchange, the respiratory system also functions to eliminate (Click to select) . Too much of this gas can cause a(n) (Click to select) in blood pH, compromising homeostasis.
Answer: Carbon dioxide, decrease
Explanation:
Cellular respiration is a set of reactions by which organic compounds (sugars) are degraded by oxidation to inorganic substances. This process provides energy in the form of ATP and to achieve this, many reactions occur in which electrons are passed from one molecule to another, called redox reactions. In the case of aerobic respiration, the final electron acceptor is molecular oxygen, which is reduced to water. Oxygen, like any gas, crosses the plasma membrane and then the mitochondrial membrane, and in the mitochondrial matrix it binds electrons and protons, forming water. It is in this final oxidation and in previous processes that energy is obtained. The reactions that extract energy from sugars such as glucose are catabolic reactions since a large molecule is broken into smaller molecules. For example, when glucose is broken down in the presence of oxygen, six molecules of carbon dioxide (CO2) and six molecules of water are obtained. Both CO2 and water are eliminated by lung exhalation.
In the event that this carbon dioxide is not completely eliminated, something called respiratory acidosis occurs, which is one of the disorders of the acid-base balance due to a decrease in the frequency of respirations or hypoventilation. The increase in the concentration of carbon dioxide in the blood causes the pH value to decrease. This scale is a measure of the degree of acidity or alkalinity of a substance or solution. A pH value of less than 7 means it is more acidic, and a pH value of more than 7 means it is more alkaline. Carbon dioxide is constantly produced as the body metabolizes energy, which will accumulate in the circulation rapidly if the lungs do not remove it properly. Alveolar hypoventilation thus leads to an increase in arterial CO2 partial pressure. The increase in pressure in turn decreases the ratio of bicarbonate (HCO3) to bicarbonate pressure with a consequent increase in acidity or decrease in blood pH. The body's metabolism rapidly generates a large amount of carbonic acid (H2CO3) and non-volatile acid. The lungs normally excrete the volatile fraction through ventilation without accumulation of acid in the blood but in this case this is not possible and this accumulation of carbonic acid causes the pH to rise. This disrupts homeostasis, a form of equilibrium that is achieved through a network of feedback control systems that constitute the self-regulatory mechanisms.
Now assume that the population of butterflies sampled in question above is in Hardy-Weinberg equilibrium. Also assume that the sample is random and large enough that the allele frequencies in the sample equal the allele frequencies in the population. What is the frequency of the allele for a) yellow wings in the population
Complete question:
A sample of butterflies contained 50% yellow-winged individuals and 50% black-winged individuals. In this species, wing color is determined by a single gene with two alleles, and the allele for black is dominant. Which of the following statements about the allele frequencies in the sample would most likely be true? Do not assume that this sample was obtained from a population in genetic equilibrium.
a)The frequency of the yellow allele is greater than that of the black allele.
b)The allele frequency of yellow is 3 times the allele frequency of black.
c)The allele frequency of yellow is twice the allele frequency of black.
d)The allele frequencies of black and yellow are equal.
e) The allele frequency of black is greater than the allele frequency of yellow.
2.Now assume that the population of butterflies sampled in question above is in Hardy-Weinberg equilibrium. Also assume that the sample is random and large enough that the allele frequencies in the sample equal the allele frequencies in the population. What is the frequency of the allele for a) yellow wings in the population? Assuming Hardy-Weinberg equilibrium in question 1, what would the correct answer be and why?
Answer:
a)The frequency of the yellow allele is greater than that of the black allele.f(b) = q = 0.71Explanation:
Due to technical problems, you will find the complete explanation in the attached files
9.5 What are the similarities and differences between reproduction in amoeba and reproduction in hydra?
Answer:
similarities: 1 they both reproduce asexually
Differences: 1 hydra reproduce through a process called budding whereas amoeba reproduce through a process called binary fission.
2 budding in hydra- results in symetric division.
binary fission in amoeba- results in unsymetrical division.
Explanation:
When the brain detects high levels of carbon dioxide and low levels of oxygen, the following will occur: A. the nerves innervating the heart will release acetylcholine to slow heart rate. B. the nerves innervating the heart will release acetylcholine to increase heart rate. C. the nerves innervating the heart will release norepinephrine to slow heart rate. D. the nerves innervating the heart will release norepinephrine to increase heart rate.
Answer:
Norepinephrine is released by sympathetic nerves and this causes increase in heart rate.
So option d is correct. :)
Explanation:
Answer:
D.
Explanation:
I have answered this exact question before
3. When there are issues with the neural tissue like this, they will often look into the eye. Why?
When there are problems with neural tissue like this, they often look into the eyes, because unlike other nerve cells in the brain, which are covered in protective myelin, nerve fibers in the retina do not have this layer and are therefore more susceptible to damage.
What is the function of neurons?Neurons are cells responsible for transmitting nerve impulses. Neurons are excitable cells, that is, they can respond to stimuli with changes in the electrical potential difference across the cell membrane.
With this information, we can conclude that the cells in nervous tissue that generate and conduct impulses are called neurons or nerve cells.
Learn more about Neurons in brainly.com/question/24217914
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You want to compare the task-related activity in the human somatosensory cortex in a control versus experimental condition. Which method would you choose?
Select one:
a.
DTI
b.
CT
c.
PET
d.
fMRI
e.
Optogenetics
Answer: d. fMRI
Explanation:
Functional magnetic resonance energy is the imaging instrument that determines the functional activities and changes in the blood flow. This technique is useful for examining cerebral flow of blood and the neuronal activation can be analyzed in both control and experimental condition of the somatosensory cortex. When the subject uses the brain the blood flow in the region increases which can be detected by fMRI.
what are the qualities of woollen fabric that makes it suitable for winter
Answer:
Heat conductivity
Explanation:When wool fibres are exposed to heat, moisture, and strain, they interlock and contract. Felting is aided by the scale-like exterior of the fibres. Heat conductivity: Since wool fibre is a weak conductor of heat, fabrics made from it are best suited for winter wear
Refer to Animation: Countercurrent Multiplication. What would you predict to be the effect on an animal species of having longer loops of Henle in their kidney structure
Answer:
The correct answers is: I would predict that animals with longer loops of Henle would be able to concentrate their urine more than animals with shorter loops, and thus they would more likely survive in desserts and other dry areas.
Explanation:
The Loop of Henle is a tubule system that connects the proximal convoluted tubule to the distal convoluted tubule in a nephron, the functional and structural unit of the kidney. Its primary job is to establish a concentration gradient in the kidney's medulla by creating a high urea concentration deep in the medulla using a countercurrent multiplier system that uses electrolyte pumps. Through this mechanism, water is reabsorbed to concentrate the urine and impede dehydration.
The length of the loops of Henle is of great importance for the countercurrent multiplier system - the longer they are, the more concentrated the urine can get. Therefore, animals with longer loops can survive better in habitats where there is not much water around.
Which is likely to be the first organisms to colonize an area after an disturbance like fire?
Lichens
Woody plants
Grasses
Shrubs
Answer:
Grasses
Explanation:
This question is describing secondary succession, which is the type of succession that occurs when a given area has being disturbed by natural disasters like hurricane, volcanic eruption, fire outbreak etc.
In secondary succession, the first set of organisms that recolonize the area after the disturbance are called PIONEER SPECIES. Pioneer species can include small annual plants like grasses. Hence, among the given options, GRASSES are likely to be the first organisms to colonize an area after a disturbance.
When the belt is moving at a high speed, 350 pills can be coated per hour. How many minutes would it take to coat all the pills in this batch at a high speed?
Answer:
6 pills are coated in one minute time.
Explanation:
There are 350 pills can be coated in 60 minutes due to high speed of belt movement which means that 6 pills are coated in one minute time period so if there are 60 pills so the belt takes 10 minutes to complete the coating of the pills. If there are 200 pills to be coated then we used the equation i.e.
6 pills -------- 1 minute
200 -------- x
By cross multiplication we get,
6x = 200 x 1
x = 200 / 6
x = 33.3 minutes
This means that in 33 minutes the belt can coated 200 pills.
( PLEASE ANSWER IT FAST) Label the Organelles of a Cell
Identify the organelles in the cell to the right.
i think i'm too late to help D:
Answer:
A-vacuole
b- chloroplast
c-cell membrane
d- golgi
e- endoplasmic
f-cell wall
Explanation:
The density of protists living in the hay infusion is ______________ than the regular pond water.
a. significantly lesser
b. lesser
c. about the same
d. greater
e. significantly greater
Answer:
a. significantly lesser
Explanation:
The density of protists living in the hay infusion is significantly lesser than the regular pond water because protists likes to live in aquatic or any water bodies. Some protists float on the surface of the water making their own food like plants by using the process of photosynthesis. Aquatic environments are ideal environment for protists, which have cilia and flagella that allows them to move in the water in search of food..
A number of similar families make up a(n) _____.
If two haploid sperm fertilize a single haploid ovum, the resulting zygote would be considered a ________.
What is socialization
Antibacterial sprays are often used when cleaning kitchen counter tops. If the same antibacterial spray is used continuously, why will some bacteria survive and reproduce?
A) Bacteria have developed resistance to the spray
B)The spray only prevents the bacteria from multiplying.
C)New species of bacteria are formed when the spray is used.
D)Most of the sprays are designed to kill only one type of bacteria.
Answer:
A
Explanation:
Which is not a kingdom in the Eukarya domain?
O A. Animalia
O B. Bacteria
O C. Plantae
O D. Protista
Answer: b bacteria
Explanation:
Answer:
Protista
Explanation:
Protists are uni-cellular and don’t consist of a nucleus which makes them prokaryotic, not eukaryotic.
What is the role of an indicator? Predict how the glucose test strips and iodine would react with the following foods:
Grape
Tomato
Summer squash
Orange
Bell pepper
Answer:
Tomato
Explanation:
A patient is examined for a routine volleyball physical, and she has a heart murmur. This may result from:
Group of answer choices
patent foramen ovale
hypotension
tetrology of Fallot
Backflow of blood through a defective valve
Answer: The answer is the last option, Backflow of blood through a defective valve.
Explanation: Hypotension causes high blood pressure, and the other two options are not related to heart murmurs. A hear murmur is when the blood isn't flowing in the right direction causing the hear to beat irregularaly.
What process in biology requires energy from a cell?
Answer:
I would assume you are talking about just basic general biology, in which case it's probably just looking for cellular respiration.
Explanation:
The switch from mitosis to meiosis in spermatogenesis is regulated by _____ levels of _______ and this is induced by _________. Fill in the blanks. Group of answer choices low, glial cell derived neurotrophic factor (GDNF), luteinizing hormone (LH) high, glial cell derived neurotrophic factor (GDNF), luteinizing hormone (LH) low, testosterone, follicle stimulating hormone (FSH) low, glial cell derived neurotrophic factor (GDNF), follicle stimulating hormone (FSH)
Answer:
1 - Follicle stimulating hormone FSH
2 - Luteinizing hormone LH
3 - Glial cell derived neurotrophic factor
Explanation:
Follicle stimulating hormone is a pituitary gland located underneath brain. It plays an important role in sexual development. FSH level in women stimulates egg production in ovaries and regulates menstrual cycle. In men FSH helps to control sperm production.
The switch from mitosis to meiosis in spermatogenesis is regulated by _____ levels of _______ and this is induced by _________.
Follicle-stimulating hormone Luteinizing hormoneGlial cell-derived neurotrophic factorWhat are the roles of mitosis and meiosis in sperm development?Somatic cells experience mitosis to increase, the germ cells experience meiosis to produce haploid gametes (the sperm and the egg).
The evolution of a new offspring organism is then started by the fusion of these gametes at fertilization.
Thus, Follicle-stimulating hormone, Luteinizing hormone, Glial cell-derived neurotrophic factor.
To learn more about mitosis and meiosis click here:
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Pleasssee helepppppp
All of the following refer to mitosis, except repair of damaged cells. production of genetically identical daughter cells. formation of gametes. growth of an organism. asexual reproduction.
Answer:
formation of gametes.
Explanation:
A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life. 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.
Generally, cells have the ability to independently replicate themselves.
Differentiation can be defined as the process in which a cell changes from a generalized cell type into a specialized cell type for performing specific functions in the body.
Mitosis can be defined as a type of cell division that occurs in all body cells found in living organisms.
Hence, all of the aforementioned statements refer to mitosis, except formation of gametes.
In living organisms, the formation of gametes is linked or has to do with meiosis.
What are the genotypes of the puppies? Let F and f
designate the dominant and recessive alleles of the
FGF5 gene, with K and k and R and r designating the
alleles of the KRT71 and RSPO2 genes, respectively.
Complete question - Answer - Explanation:
Due to technical problems, you will find the complete question, the answer, and the explanation in the attached files.
If segmentation has been done correctly, then the segments should reflect homogeneity within each segment and across/ between segments. This statement is ______________
Answer:
The correct answer is - true.
Explanation:
The given statement is true as common marketable traits are observed between the segments it would represent homogeneity. This same segment would be representing homogeneity within each segment and between segments that would be heterogeneity in order to propagate the market.
If segmentation has been done correctly, then the segments should reflect homogeneity within each segment and across/ between segments. This statement is TRUE.
In biology, segmentation refers to the embryonal process where different parts of the body are formed during development.Segmentation can be defined as the repetition of two or more body units along the anterior-posterior axis.Segmentation is a fundamental process in insect and mammal development.In conclusion, if segmentation has been done correctly, then the segments should reflect homogeneity within each segment and across/ between segments. This statement is TRUE.
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https://brainly.com/question/6826773
A mother is a carrier for colorblindness and a dad is colorblind, please draw a Punnet square and indicate the probability of having a child who has colorblindness, a child who is not colorblind and a child who is a carrier for colorblindness.
Answer:
Table is given below.
Explanation:
Puneet square is a square diagram that is used to show and predict the genotypes of a species through the cross beading experiment. It was developed in 1905. It is a tabular summary of all the all the possible combination of maternal and paternal allies.