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3 years ago

15

Scientists believe that increases in skin cancer, plant damage, and plankton deficiency may result from the increased UV exposur

e due to
A) pollution.
B) ozone depletion.
C) the revolution of the sun.
D) the ocean's pull on the moon.

1 answer:

noname [10]3 years ago

3 0

Ozone depletion would cause more UV rays to pass through so your answer would be B)
Pollution causes B)

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From which of the following does the basic structure of hair and nails form?

arsen [322]

Answer: D. Keratin

Explanation: Keratinocytes (pronounced: ker-uh-TIH-no-sites) make keratin, a type of protein that's a basic component of hair, skin, and nails. Keratin in the skin's outer layer helps create a protective barrier.

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2 years ago

The net primary production of a pine forest on a lava flow on Mount Fuji is about 165,000 kcal/m2/yr, and the plant respiration

IceJOKER [234]

Answer:

<em>The total amount of energy transferred during photosynthesis for this ecosystem equals</em><em> 260,000 kcal/m2/yr.</em>

Explanation:

To answer this question, we need to know that

gross primary productivity (GPP) = energy captured and converted into chemical energy during photosynthesis

net primary productivity (NPP) = difference between GPP and respiration rate

So, to calculate GPP we need to sum NPP to Respiration rate. This if,

NPP = 165,000 kcal/m2/yr

R = 95,000 kcal/m2/yr

NPP = GPP – Respiration

Then,

GPP = NPP + R

GPP = 165,000 kcal/m2/yr + 95,000 kcal/m2/yr

GPP = 260,000 kcal/m2/yr

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3 years ago

You breed a plant that has purple flowers with a plant that has orange flowers and the resulting offspring has purple and orange

gayaneshka [121]

Answer:

Incomplete dominance

Explanation:

Incomplete dominance is the expression of phenotype of two paired alleles (i.e dominant and recessive allele) all together.

Usually when two alleles get paired, the characteristics of the dominant allele is expressed while the characteristics associated with recessive alleles are expressed only when the two recessive allele get paired.

Here in this case the characteristics of both type of allele are expressed i.e. both orange and purple strips appear in the offspring. Hence, this case shows the incomplete dominance.

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3 years ago

Who is known as the “father of modern chemistry” because he first organized all known elements into four different groups?

Gemiola [76]

<span>The answer to the following question would be, Antoine Lavoisier. </span>

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3 years ago

Read 2 more answers

When people take a mineral and hold it up, what kind of test is that?

Whitepunk [10]

Answer:

Luster

Explanation:

luster is the only answer that has to do with light. Luster is measured by the way a mineral reflects light.

Cleavage has to do with breaking minerals apart along certain fracture lines. Cleavage is not the answer.

Hardness is a test where one mineral is used to scratch another. The one that does the scratching is harder than the one that is scratched.

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3 years ago