Th difference between the three type of selection has been that stabilization selection keeps allele frequency constant, direction selection changes the allele frequency over generation, while disruptive selection maintain high allele frequency.
What is natural selection ?
Natural selection is the process by which populations of organisms adapt and change.
The 3 Types of Natural Selection
Stabilizing SelectionDirectional SelectionDisruptive SelectionStabilizing SelectionStabilizing selection is natural selection that keeps allele frequencies relatively constant from generation to generation. In other words, unless the environment changes, things stay the same.
A classic example of stabilizing selection is human birth weight Very low birth weight and very high birth weight are mutually selected to keep the mean birth weight
Directional SelectionDirectional selection is a natural selection that causes gradual changes in allele frequencies over several generations. This usually occurs when environmental/selection pressures change or when favorable new alleles emerge within the population.
Example: Recent findings show that climate change is affecting fish size in certain habitats.
Disruptive SelectionDestructive selection is natural selection that maintains high frequencies of two different allele sets. In other words, individuals with intermediate phenotypes or alleles are selected.
Destructive selection causes polymorphism: the persistence of two or more distinct phenotypes in species . This can occur in environments that exhibit variability.
For example, birds in the Galapagos Islands use their beaks to forage seeds of various sizes.
Therefore, the difference between the three types of natural selection is that:
Stabilizing selection keeps allele frequencies relatively constant from generation to generation.
Directional selection causes gradual changes in allele frequencies over several generations.
Destructive selection maintains high frequencies of two different allele sets.
Learn more about natural selection here:
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What happens during S phase?
Answer:
DNA is replicated
In asexual reproduction, 2 parents each pass copies of all of their chromosomes to the offspring. true or false
Answer:
False.
Explanation:
What are the potential advantages and disadvantages of a major shift from the hard or traditional path of energy development to the soft or visionary path?
(These were the corresponding textbook pages, if needed) Please read the following from the textbook Environmental Science:
7th Edition - Chapter 17
9th Edition - Chapter 14
Answer:
Advantages of following the soft path, the argument here is alternative sources of power such as hydropower, geothermal energy , wind energy , and photovoltaic cells must be developed. This provides a alternative source to remain in a healthy environment and also function as the society we currently live in using the hard path. Disadvantages of following the hard path result with future generations fearing over the irreversible damage of climate change and the damage done to our atmosphere. The hard path argue that we should continue to operate in the future as we have in the past, except more efficiently. This is close to impossible and will only continue the negative effects the hard path( the path we have been following) results in. The major shift determines the outcome of this world, the futures worries or reliefs and ultimately the survival of humans.
Explanation:
The picture below shows four locations and their temperatures. The temperature in each location is given in Celsius. Answer the question using what you know about heat transfer and how it ALWAYS travels.
Answer:
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Hey My Name is Chloe, and I need some Help, But if you can't it's ok,
So I need Some Facts and Topics on Land Animals, I did some research But I didn't find enough. Any Is fine
Answer: CHIMPANZEES. RECKONED to be the most-intelligent animals on the planet, chimps can manipulate the environment and their surroundings to help themselves and their community. They can work out how to use things as tools to get things done faster, and they have outsmarted people many a time.
Explanation:
Answer: Animal: Bengal tigers
Topics: Why are bengal tigers being hunted? How many bengal tigers are left in the world? Are bengal tigers being bred in captivity.
Facts:The White Tiger is one of the rarer relatives of the big cats. Due to their white coat they are often referred to as the bleached tiger. White Tigers are in fact a subspecies of Tigers and are the pigmented variation of the Bengal Tiger, sometimes found in the wild on the Indian subcontinent.
Explanation: I would suggest looking at national geographic if you want cooler animals.
Please help!
..........
Answer:
我期望1个是正确的答案 并问老师好
Explanation:
你可以在书中找到
Project: Earths layers
Answer:
here hope helps
Explanation:
would you expect a plant to produce more oxygen on a cloudy day or a sunny day? explain
Answer:
You would expect a plant to produce more oxygen on a sunny day because there are more sun rays available to plants so photosynthesis is easier to maintain, as well as oxygen production.
Can someone please help me please
Answer:
I think so answer is D
Explanation:
I hope it helps you
Pl Mark brainlist answer
There is balance between Apoptosis and Mitosis. What is the
characteristic of life that would involve maintaining this balance?
Metabolism
Respond to Stimuli
Homeostasis
Universal Genetic Code
Answer:
Homeostasis
Explanation:
Explain why society has been developing different renewable resources in favor of
nonrenewable resources in the past few decades.
Answer: Society has been developing different renewable resources in favor of nonrenewable sources in the past decades because natural gas and oil has been used to much that we are running out of nonrenewable sources. So society has been trying to use solar panels, wind panels, and water.
Explanation:
Need help on this *URGENT*
Each of the following is a density-dependent limiting factor EXCEPT:
- crowding
- predation
- competition
- disease
Answer:
predation
Explanation:
predation
I hop this answer is correct
Answer:
Disease
Explanation:
What are the answers for questions 4 and 5?
Answer:
4. D (enzymes 1 and 3 works equally well in an acidic and alkaline environment respectively)
5. C. 2; 7; 9.5
Explanation:
The image attached to this question shows a graphical representation of the pH ranges for three enzymes. According to the image;
- Enzyme 1 reached its peak reaction rate at pH 2 (acidic)
- Enzyme 2 reached its peak reaction rate at pH 7 (neutral)
- Enzyme 3 reached its peak reaction rate at pH 9.5 (basic)
This result means that enzymes 1, 2 and 3 will work well and effectively at an acidic, neutral and alkaline environment respectively. Likewise, the optimal pH level for enzymes 1, 2 and 3 are 2; 7; and 9.5 respectively.
What is the scientific definition of a wave?
Answer:
Waves involve the transport of energy without the transport of matter. In conclusion, a wave can be described as a disturbance that travels through a medium, transporting energy from one location (its source) to another location without transporting matter.
I hope it's helpful!
Waves involve the transport of energy without the transport of matter. In conclusion, a wave can be described as a disturbance that travels through a medium, transporting energy from one location (its source) to another location without transporting matter.
What method do scientists use to trace plant and animal extinctions through Earth's history
Answer:
Paleontology is the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.
Explanation:
The coronavirus attaches to a membrane protein called
Answer:
M glycoprotein..
The coronavirus attaches to a membrane protein called M glycoprotein..
What percentage of those struck by
lightning, live to tell about it?
of every ten people struck by lightning, nine will survive and tell the tale.
Help!! Please!! I'll name you brainliest!!
What are created during the process of translation?
Answer:
a gene expression
Explanation:
and
Based on the theory of natural selection, which of the explanations best describes the change in the beak depth of the medium ground finch during the dry years?
A.
The beak depth of the individual finch decreased.
B.
The beak depth of the finch population decreased.
C.
The beak depth of the individual finch increased.
D.
The beak depth of the finch population increased.
Answer:
B
Explanation:
The beak depth of the finch population decreased.
Answer:
D
Explanation:
Because when its dry season it increases
Mitosis results in _______ cells and meiosis results in _______ cells. The term that applies to the cells produced in mitosis is __________, because they contain all of the chromosomes, while the term given to cells produced in meiosis is __________ because they only have half of the original chromosome number.
Answer:
1 in two daughter
2 in four daughter
3Diploid
4haploid
air passes from the nose into the bronchi true or false?
Answer:
True
Explanation:
The right lung has 3 sections called lobes and is a little larger than the left lung, which has 2 lobes. The bronchial tubes divide into smaller air passages called bronchi. The functioning of the lungs is discussed in detail.
Are haploid cells sexual or asexual reproduction?
2. Which hormone stimulates the removal of sugar from the blood?
a. Glucose
b. Insulin
c. Glycogen
d. Glucagon
Answer:
Glucagon
Explanation:
Glucagon works along with the hormone insulin to control blood sugar levels and keep them within set levels. Glucagon is released to stop blood sugar levels dropping too low (hypoglycaemia), while insulin is released to stop blood sugar levels rising too high (hyperglycaemia).
which of the following are not considered as examples of asexual reproduction of plants?
a. ginger, onion, garlic
b. camote, carrot,potatoes
c. banana,bamboo,turmeric
d. avocado, papaya,mango tree
3. What might happen to the ecosystem if this population were removed?
Answer:
More predators kill more prey, which, along with food scarcity, decreases the population.
Explanation:
Answer: ''Population Explosions The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ''
Explanation:
What objects in the solar system are larger than earth
Answer:
the sun, jupiter, saturn, uranus, neptune
Explanation:
Which of the following most accurately describes the National Postsecondary Agricultural Student Organization?
(a)A rival group to FFA.
(b)2.A group similar to FFA but for graduate students.
(c)A group similar to FFA but for college students.
(d)The British version of FFA.
Answer:
Explanation:
a
Answer:
It's a
Explanation:
What determines the amount of biomass a given trophic level can
support? *
Explanation:
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