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Sonbull [250]
3 years ago
10

Explain this phrase: "animals don't mutate and adapt because they need to...."

Biology
1 answer:
Bumek [7]3 years ago
6 0
 <span>One important mechanism of evolution, natural selection, </span>does<span> result in the evolution of improved abilities to survive and reproduce; however, this does not mean that evolution is progressive — for several reasons

</span>
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3characteristics of good respiratory surface​
ch4aika [34]

thin walls.

a moist inner surface.

a huge combined surface area.

3 0
3 years ago
White flower color is recessive to purple flower color in pea plants. If a pea plant has white flowers, what is
irina1246 [14]

Answer:

An organism's genotype is its specific combination of alleles for a given gene. So, for example, in the pea plants above, the possible genotypes for the flower-color gene were red-red, red-white, and white-white. The phenotype is the physical manifestation of an organism's allelic combination (genotype).

Explanation:

hope this helps sorry if it doesn't have a good rest of your night :) ❤

5 0
3 years ago
Match each leukocyte to its normal percentage in a differential cell count. A. 50-70% B. 20-40% C. 2-8% D. 1-4% E. &lt; 1% basop
Vsevolod [243]

Answers:

A. 50-70% - neutrophils

B. 20-40% - Lymphocytes

C. 2-8% - monocytes

D. 1-4% - eosinophils

E. < 1% -  basophils

Explanation:

The blood differential test is used to estimate the percentage of each class of white blood cell (WBC) present in the blood and to indicate the presence of abnormal or immature cells.

The Test is Performed by taking of blood sample which is smeared onto a glass slide, then it's stained with a unique dye to indicate the class of white blood cells.

The Five class of white blood cells are

Neutrophils

Lymphocytes (B cells and T cells)

Monocytes

Eosinophils

Basophils

The different class of white blood cells are given as a percentage:

Neutrophils: 40% to 60%

Lymphocytes: 20% to 40%

Monocytes: 2% to 8%

Eosinophils: 1% to 4%

Basophils: 0.5% to 1%

Band (young neutrophil): 0% to 3%

7 0
3 years ago
What’s a secondary air pollutant
Orlov [11]

Answer:

<h2>Secondary air pollutants are pollutants which form in the atmosphere.</h2>

Explanation:

Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the air; and acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water.

5 0
4 years ago
In North American forest, two species of birds, nuthatches and brown creepers, forage on the same trees for insects. Brown creep
Yuri [45]

Answer:

The correct answer is - reducing competition between the birds for resources.

Explanation:

In this ecosystem, the two species of birds brown creepers and nuthatches share habitat in the same tree for their food resources are insects. Brown creepers feed on resources on the bottom of the tree whereas nuthatches feed on the top of the tree.

By this, they avoid competition between these two birds for the same food resources in the same tree. The competition would be more if both have depended on the insects all over the tree.

4 0
3 years ago
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