Rabbits can exhibit a number of colors in their coats: black, white, tan, brown, red, and grey. A disease randomly kills off most of the population and leaves only black and grey rabbits. Future generations are only black or grey. What is the term used to describe this
phenomenon? (1 point)
1. artificial selection
2. genetic drift
3. natural selection
4. genetic modification
please hurry and I will mark brainliest!
Answers
Answer:
2. Genetic Drift
Explanation:
Because it's simply by chance not on purpose or because their stronger.
Term used to describe the phenomenone where only black and grey rabbits survive and rest are killed randoml is called Genetic Drift..
What is genetic drift?As a result of a chance or random event, the frequency of an allele in a population drifts over time compared to the frequency of the other alleles. this is termed as genetic drift. Here, the rabbits with other coat colors were randomly killed off due to the disease which increased the frequency of the black and grey coat allele and hence the population drifts from multicolored coats to only black and grey colored rabbit coats.Hence the correct option here will be 2. Genetic Drift
other options are incorrect because:
Artificial selection is inducing the desired traits artifically which is not possible because the disease was a random event and not induced by humans.Natural selection is the survival of the fittest of the alleles and elimination of less fitter alleles. here it is not mentioned whether Black and grey coats were more fitter to survive than other coatsGenetic modification is a human made procedure and did not occur here.learn more about Genetic Drift here:
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Related Questions
Which statement best describes the effect of color on energy absorption and reflection?
Light colors reflect more and absorb less than dark colors.
Light colors reflect less and absorb more than dark colors.
Light colors absorb and reflect more than dark colors.
Light colors absorb and reflect less than dark colors.
Answers
The answer is A) Light colors reflect more and absorb less than dark colors.
Because remember, white is the absence of color (reflect) and black is every color (absorbs) :D
Light colors reflect more and absorb less than dark colors. The correct option is A.
What is reflection?When two different media come together at an interface, a wavefront might change direction so that it returns to the first medium, which is known as reflection. The reflection of light, sound, and water waves are typical examples.
It is referred to as light reflection when a light ray hits a polished, smooth surface and bounces back. The incident light rays hit the surface and are reflected off of it.
The darker colours absorb more of the various light energy wavelengths, whereas white or light-colored objects reflect the majority of these wavelengths, which is why heat absorption depends on hue. As a result, black absorbs all light's wavelengths while reflecting none.
Thus, the correct option is A.
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Which source of energy causes most of the water evaporation on Earth’s surface?
Answers
Answer:
heat energy from the sun
The fin of a tuna and the flipper of a dolphin are:.
Answers
ASAP
15. If out of 100 offspring, 74 are purple flowered and 26 are white, what were the likely genotypes and
phenotypes of the parents if this is a simple monohybrid cross?
Answers
Answer:
so it would be a 3 : 1 ratio.
Explanation:
The probable genotypes of the parents is Pp (Purple). When we will cross the two heterozygous purple flowers we will get the purple and white coloured flowers
The ratio would be 3:1. The parents' likely genotypes are Pp (Purple). Purple and white colored flowers will result by crossing two heterozygous purple blooms.
What are Genotypes and Phenotypes?The type of variant existing at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolise it. For illustration, BB, Bb, and bb might be employed to denote a certain gene variant.
The term "phenotype" refers to an organism's observable qualities, which are a multifactorial result of hereditary attributes and environmental factors. The physical, biochemical, physiological, and behavioral characteristics of an organism make up its phenotype.
Pp is the likely genotype of the parents (Purple). In the example presented above, combining two heterozygous purple blossoms will produce flowers that are both purple and white.
Thus, the ratio would be 3:1. The parents' likely genotypes are Pp (Purple). Purple and white colored flowers will result by crossing two heterozygous purple blooms.
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Research on the biology of aggression has clearly demonstrated that:.
Answers
Answer:
Research on the biology of aggression has clearly demonstrated that animals can be bred for aggressiveness. When a mild-mannered woman had an electrode implanted in her amygdala, she developed more aggressive tendencies. Studies have revealed diminished activity in the ________ of violent criminals.
Explanation:
animals can be bred for aggressiveness
Which phylum is characterized by animals that have a segmented body?.
Answers
Arthropoda
Explanation:
Arthropods have segmented bodies, like the annelid worms.
16. Why should the recessive phenotype be used first to determine the q squared value instead of the dominant phenotype to determine the p squared value?
Answers
The recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.
What is a recessive phenotype?A recessive phenotype is a phenotype which expresses the recessive trait of a gene.
The recessive phenotype is always h0m0zygous for that triat to be expressed.
In the Hardy-Weinberg equilibrium equation, the allele and phenotype frequencies are given as follows:
p^2 + 2pq + q^2 = 1where;
p^2 is the h0m0zygous dominant phenotype frequency2pq is the heterozygous phenotype frequencyq^2 is the h0m0zygous recessive phenotype frequencyTherefore, the recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.
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Five hundred cockroaches of one species were sprayed with a new insecticide. Twenty-four hours later nearly all the cockroaches were dead. A few, however, survived. This outcome illustrates which one of darwin’s key ideas about natural selection and variation?.
Answers
Answer:
This shows that over time, some insects can become "pesticide-resistant" meaning that pesticides don't affect them anymore. And this only happens every few generations. Therefore, each generation is being naturally selected and accumulating variations that make them resist the chemicals. This shows that each cockroach's genes are changing to give them variation from the rest of the population.
I hope this helps!
_____ scans create pictures of the living, active brain.
Answers
Answer:
A brain positron emission tomography (PET) scan. This is a type of scan that allows doctors to see how your brain is functioning
Explanation:
PLEASE HELP DUE IN 10 MIN
Answers
Answer:
what are the options
Explanation:
Blood has traveled from the heart to the toes. Which describes the next step
of the circulation process?
• A. The blood releases carbon dioxide on the way back to the heart.
•
B. The blood goes through the liver to be cleaned.
O C. The blood travels back to the heart in a vein.
• D. The blood travels to the lungs to get oxygen.
Answers
Which of the following is NOT an advantage of reproduction?
A. no mate required
B. fast way to repopulate
C. creates genetic variation
Answers
Answer:
C.
Explanation:
Shows the logical approach to the benefits of reproduction.
Hope it helps (:
Which of the following explains why it is important to store feed correctly?
Answers
Answer:
the important explaination we must store food in the cool place
Within the ANS, the effects of the ______ division are often general and widespread, while in the _______ division the effects are more specific and local.
Answers
Answer:
I guess-
Sympathetic
Parasympathetic
Explanation:
The autonomic nervous system(ANS) has two main divisions: Sympathetic. Parasympathetic.
Hysterectomy Is a surgical removal ofthe Uterus.It may or may not be accompanied by Salpingo-oophorectomy, removal of the uterine tubes and ovaries. Why would it be an advantage to leave the ovaries intact
Answers
It is an advantage to leave the ovaries intact because the woman will still be able to produce eggs and children through In vitro fertilization.
What is an Ovary?This is a part of the female reproductive system which serves as the site for egg production.
When the ovaries are intact, the eggs can be taken and fertilized with the sperm in a lab dish and implanted into the uterus of another female for development of the zygote.
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What happens to energy from the Sun when it reaches Earth
Answers
Answer:
The energy from the sun that reaches Earth’s surface is mostly “shortwave” radiation – mostly visible light. This energy passes freely through the atmosphere and is absorbed by Earth’s surface. The surface warms from the energy input, and some of its heat projects back to the atmosphere as infrared radiation.
Explanation:
Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some is absorbed by the atmosphere, and some is absorbed at the Earth’s surface. … Shortwave radiation reflected back to space by clouds.
Which valve prevents backflow into the right ventricle?.
Answers
These valves ensure that blood flows in only one direction, preventing backflow. The tricuspid valve is situated between the right atrium and right ventricle. The pulmonary valve is between the right ventricle and the pulmonary artery. The mitral valve is between the left atrium and left ventricle.
The population in a 50 square mile area is 200 people. What is the population density?
Answers
This is a simple calculation.
Typically you convert square miles into square kilometers. But you can apply this formula to both imperial and metric systems.
Formula:
[tex]Population Density = Population/Land Area[/tex]
Here is what your equation looks like
[tex]Population density = 200/50^2[/tex]
Calculate that and you get 0.08 people per square mile.
A patch of flowers was exposed to a harmful pesticide. Identify and explain which organelle(s) would
be heavily involved in providing the plants' cells with protection.
Answers
Answer:
plasma membrane?
Explanation:
The function of plasma membrane is seperating the contains from outer environment?
pls help will give brainliest and 5 starts
Answers
Answer:
See the answer below
Explanation:
5
2
1
3
4
The color yellow (Y) is a dominant trait. The color green (y) is a recessive trait. If a pure yellow pea (YY) mates with a pure green pea (yy), what will the offspring look like?
A. All yellow
B. All green
C. 1/2 yellow 1/2 Green
D. 3/4 blue 1/4 yellow
Answers
Answer:
A) All yellow
Explanation
If the hom ozygous dominant ma tes with the hom oz ygous recessive, 100% of offspring will be he tero zygous and express the dominant trait. Looking at the help image below, all offspring will be he teroz ygous and e xpress the yellow color trait.
I hope this helps!
. The amount of food, space, and predators are examples of ____________________ that limit the number of individuals that the environment can support.
Answers
The amount of food, space, and predators are examples of density-independent factors that limit the number of individuals that the environment can support.
What are density-independent factors?Density-independent factors are those factors that do not depend on the size of a population to affect the population.
Density-independent factors include the following:
PredatorsAvailability of nutrientsSpaceDisease outbreakTherefore, the amount of food, space, and predators are examples of density-independent factors that limit the number of individuals that the environment can support.
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lime is applied to soil to remove or reduce - of the soil
Answers
Answer:
What i got it is reduce
because Lime will neutralize this acidity by dissolving, whereupon it releases a base into the soil solution that reacts with the acidic components, hydrogen and aluminum. Soil pH is an indicator of “soil acidity”
Which of the following names an effect of increasing the livestock population through higher fertility rates?
increased cost for food products
increased cost for food products
improved behavior in animals
improved behavior in animals
increased methane emissions from cattle
increased methane emissions from cattle
improved animal-husbandry practices
improved animal-husbandry practices
Answers
Explanation:
Help me in exercise 7 and 8
Answers
Answer:
I took a picture of my answers and put it in, and for exercise 8 do you have words to fill in the blanks? or is it just your own words.
Explanation:
L Pretest: Unit 1
Question 14 of 30
Which technology can environmental scientists use to follow animals that
have been fitted with electronic collars?
A. Environmental DNA (eDNA) surveillance
OB. Global positioning systems (GPS)
OC. Geographic information systems (GIS)
OD. Unmanned aerial systems (UAS)
SUBMIT
Answers
The Global Positioning System (GPS) is used by environmental scientists to monitor the movements of polar bears and other sensitive populations. So, the correct option is B.
What is Global Positioning System?A satellite-based radio navigation network owned by the US government and run by the US Space Force is known as the Global Positioning System, or Navstar GPS. A GPS is a global satellite navigation system that can be used for tracking, navigating, and other purposes.
In today's world, GPS is a necessity, and if someone gets lost, their cell phone's GPS can assist us locate them. Environmental scientists use GPS to follow polar bears and other fragile animals in a similar way. Certain GPS receivers have a precision of one centimetre, allowing them to pinpoint their location (0.4 inches). Location is provided by GPS devices in terms of latitude, longitude, and altitude.
Therefore, the correct option is B
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2. why would advances in medicine lead to population growth? a. treatment of deadly diseases allows people to live longer b. people are unable to have babies without medical help c. babies do not grow if they don't take their medicines d. drugs allow mothers to have multiple births, like octuplets.
Answers
The treatment of deadly diseases allows people to live longer which leads to increase in population.
Why would advances in medicine lead to population growth?Due to advances in medicine, the death rates become slower which leads to increase in population. Medicines helps in the treatment of many diseases which causes death.
So we can conclude that the treatment of deadly diseases allows people to live longer which leads to increase in population.
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Which process helps replace damaged skin cells?
meiosis
mitosis
fertilization
fusion
Answers
Answer:
1) growth and development
2) to heal wounds,cuts,etc.and replace damage cells
3) to maintain the ideal surface area to volume ratio
❕♥️HOPE IT HELP'S♥️❕Mitosis is a process of cell division that results in the formation of two new daughter cells. It plays a crucial role in living organisms. It helps to maintain the genetic stability and helps in increasing number of cells in body thus leading to growth.
Replacement of damaged cells is carried out by mitosis. Mitosis helps in the production of identical copies of the cells this helps in repairing the damages tissue or worn out cells. It creates new skin cells to replace read skin cells.What term refers to the process by which cancerous cells spread throughout the body? a) malignant
b) metastasis
c) benign
d) mitosis
Answers
Answer:
I believe the correct answer is B) metastasis
Which statement best describes how organisms use DNA and amino acids to synthesize protein?
1 Dna is transcribed into mRNA, which is translated by the ribosome to produce an amino acid chain.
2 DNA is translated into mRNA, which is transcribed by the ribosome to produce an amino acid chain
3 Amino acids are transcribed into mRNA, which is translated into the nucleus to produce a molecule of DNA.
4 Amino acids are translated into mRNA, which is transcribed in the nucleus to produce a molecule of DNA.
Answers
Answer:
1 Dna is transcribed into mRNA, which is translated by the ribosome to produce an amino acid chain.
Explanation:
The steps of the process are always from DNA to mRNA to amino acids. This is because DNA can't travel out of the nucleus. So, DNA must be converted to mRNA to travel out of the nucleus. Only mRNA can leave the nucleus. The m in mRNA stands for messenger, so think of mRNA as the messenger from DNA to amino acids. Then the mRNA must be converted to amino acids to produce a protein.
So, options 3 and 4 are eliminated.
The process of DNA to mRNA is called Transcription. The act of transcription is called transcribing.
The process of mRNA to amino acid is called translation. The act of translation is translating.
The only option that fits this category is option 1.