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Tasya [4]
3 years ago
11

Describe how natural selection can occur in a population. Choose an organism that you suspect has undergone natural selection, w

hy do you think this?
Biology
1 answer:
Ahat [919]3 years ago
5 0

Following general conditions are necessary for natural selection to occur in population:

  • More organisms are born than can survive.
  • Organisms vary in their characteristics, even within a species.
  • Differences in reproduction and survival are due to variation among organisms.

According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

Galapagos Finches: The Galapagos finches studied by Darwin on his famous voyage are probably the most common example of natural selection.

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8 0
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Compare the benefits of natural change to ecosystems to the disadvantages.
jok3333 [9.3K]

Answer: if change happens naturally in an ecosystem it will be better evolved to handle it. But at the expense it happens very slowly

Explanation: my answer

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What is the energy autotrophs use to make their own food?
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<span>Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar. The glucose gives plants energy.</span>
4 0
3 years ago
Human blood groups are governed by three alleles, IA, IB, and i. IA and IB are codominant and i is recessive to both. A man who
tangare [24]

Answer:

The correct answer is e. all of the above

Explanation:

A person can only have two allele of a character, therefore, the genotype of a male parent can be IBIB or IBi and the genotype of female parent can be IAIA or IAi. Therefore during gamete formation, all allele will segregate and assort independently.

So all the possible combinations are possible that are  IAIB, IAi, IBi or ii because all the allele can be present in the two parents in which one have A blood group and another have B blood group.

Therefore their children could have A, B, AB, or O blood group so the correct answer is e. all of the above.

7 0
3 years ago
, the cortical angiome: an interconnected vascular network with noncolumnar 663 patterns of blood flow. nat. neuroscience 16, 88
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Noncolumnar patterns of blood flow with the interconnected vascular network.

The standard model of cortical columns has network has tightly linked vascular network. It graph was carefully studied and theoretically analyzed. The results concluded that the microvascular that forms the subsurface, has formed a topology by the interconnected loops. And it is consistent with the boundary and the position of columns.

Furthermore, it was calculated that the blood flow patterns in the cortical column network are not related to the column's location. Instead, to limit lateral perfusion venues were penetrated that drained the sourced blood effectively by penetrating the arterioles.

Therefore, this analysis helps in understanding the effect of penetration strokes of vessels and its functional imaging on the viability of the brain.

To know more about arteriole, refer to the below link:

brainly.com/question/3420464

#SPJ4

7 0
1 year ago
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