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ArbitrLikvidat [17]
2 years ago
5

Describe an environmental factor that could influence natural selection and increase genetic diversity. Pick a specific example

to illustrate your point.
Biology
1 answer:
ELEN [110]2 years ago
8 0
Populations have a genetic variation among individuals and that is important to the populations ability to survive in different situations that have an affect on the natural selection. There are different factors which can increase or decrease the genetic diversity, and influencing natural selection. These factors can include an environmental factor, one of the major factors, which can cause changes in the genetic variation of a population and influence the natural selection. A famous and important example of the environmental factors affecting natural selection was made during the industrial revolution when many more gray moths made up the moth population. This was so that they could blend in with the soot from factories to avoid predators.
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What part of the body reproduces, grows, repairs itself, uses oxygen and nutrients, digests food, eliminates waste, produces hea
Vadim26 [7]

Answer:

A Human Cell

Explanation:

A Human Cell can do many things. All your organs, hair, skin, and muscle tissue are all made up of cells. Each human cell from a different part of your body can do and create different things. For example, the cells duplicate (which is reproduction), when it duplicates, it grows. It also uses the oxygen and nutrients for cellular respiration, when it takes in the oxygen and nutrients, it turns it into ATP, which is used to help your cells function. There are many other ways the human cell may relate to the question above. But here are some of the ways a human cell can be all those things.

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2 years ago
Photosynthetic algae create sugars that will eventually be broken down during which process
Leya [2.2K]
The breaking down of sugars is called glycolysis. The prefix glyco- means sugar, and the suffix -lysis means breaking down. It's part of a three-step process in respiration, the other two is The Krebs Cycle and Electron Transport Phosphorylation. In the process of glycolysis, 2 ATP and 2 NADH are produced.
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2 years ago
In an ecosystem, a deer consumes grass. What percentage of energy will the deer acquire from the grass?
dangina [55]
10% of the energy goes to the deer
5 0
2 years ago
Read 2 more answers
How many contractions per minute were required for the paramecium to maintain a relatively stable internal solute concentration
Phoenix [80]

Answer:

abt 24 contraction per min is needed to maintain a relatively stable internal solute conc.

paramecium maintain its volume by preventing itself from shrinking by holding in as much water as it can.

When the water solute concentration is reduced, the number of vacuole contractions will increase. But when the water solute concentrations rise, the number of vacuole contraction will decrease.

When the number of vacuole contractions will increase, the water solute concentration is reduced. But when the water solute concentrations rise, the number of vacuole contraction will decrease. So it is cetris paribus, means when the one is increase the other one will decrease.

8 0
2 years ago
In horses, the Overo gene, Ov, produces a white splotch pattern on the coat. The overo phenotype is seen only when a horse has o
Anuta_ua [19.1K]

The question is incomplete. Here is the complete question.

In horses, the Overo gene, <em>Ov</em>, produces a white splotch pattern on the coat. The overo phenotype is seen only when a horse has one Ov copy, <em>Ovov</em>. Horses with two <em>Ov</em> copies, <em>OvOv</em>, die soon after birth are called white overo because they are completely white. Horses with no <em>Ov </em>copies are solid colored, <em>ovov</em>.

The Leopard complex gene, <em>Lp</em>, shows incomplete dominance and controls white spotting. One <em>Lp </em>allele, <em>Lplp</em>, produces the leopard phenotype, in which there are spots everywhere. Two <em>Lp</em> alleles, <em>LpLp</em>, produce the fewspot phenotype, in which the horse is mostly white with colored spots.

A horse that is both overo and leopard is called pintaloosa, and these horses are spotted with splotches. A horse that is overo and fewspot is considered fewspot because the white areas from <em>Lp</em> is indistinguishable from the white from <em>Ov</em>.

Suppose that 16 pairs of pintaloosa horses have one offpring per pair. How many each phenotype would be expected? Determine the number out of 16 expected for each phenotype. Only count phenotypes of offspring expected to live past one week of age.

overo:

white overo:

fewspot:

Answer: Overo: 2

              White overo: 0

              Fewspot: 3

Explanation: Pintaloosa is a "combination" of overo and leopard, so the pair's genotype is OvovLplp.

To cross a pair, use Punnet Square and to facilitate, use the square for each characteristics:

Punnett Square For overo and white overo:

          Ov             ov

Ov    OvOv        Ovov

ov    Ovov          ovov

Analysing this Punnett square, notice that there are 2 individuals who will carry the genotype for overo (Ovov) phenotype. So, 2 out of the 16 pair will have an overo phenotype.

Since white overo is recessive (ovov) and doesn't survive past birth, there will be zero horses with that phenotype.

Punnett Square For leopard and fewspot:

          Lp         lp

Lp    LpLp      Lplp

lp     Lplp       lplp

From this square, notice that there are 1 individual who is fewspot. However, a horse that is overo <u>and</u> fewspot is considered fewspot, so for the 16 pair, 3 out 16 will be fewspot.

5 0
2 years ago
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