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stealth61 [152]
3 years ago
10

Variation in a trait is a required condition for natural selection to act on a population for that trait. Assuming a

Biology
1 answer:
mel-nik [20]3 years ago
8 0
Because two organisms one with the trait and one without could make an organism which would cause variation
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You have been hired to forecast future population level for a small country. You know that this country currently has 25 million
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Answer:

Explanation below

Explanation:

It should be understood that the population growth rate of a particular country can be explained or described as the increase in the number of the citizens of that country.

There are so many factors that contribute to an increase in the number of people of a country. These include influx of people into the country, increase in birth rate and decrease in death or mortality rate.

In this case, the growth rate is usually calculated in percentage, so the growth rate should be around 3.5%.

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What is an alternative hypothesis in biology.
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Definition. The hypothesis accepted to be true if the null hypothesis is rejected based on statistical evidence. Supplement. In the statistical testing of hypothesis, the two rival hypotheses are the null hypothesis and the alternative hypothesis.
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Which statement is correct?
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BioTeacher101

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How would the cycle be different if there were no water on earth?
Luda [366]

Answer:

What I expect would happen: First, there would be no clouds. Lack of clouds would mean there would be no rain and the average temperature of the Earth would increase, resulting in large areas of land becoming desert.

Explanation:

The water cycle is the process where water falls as rain, is transported via rivers and streams to lakes and oceans, evaporates into the sky, condenses into clouds, and falls as rain again. Here's a diagram:

water.usgs.gov

water.usgs.gov

So what would happen if there were no condensation stage?

The condensation stage is the one where water vapour gathers together into clouds (and when the clouds become heavy enough with vapour, release water as rain). So the first answer is that there would be no clouds.

Without clouds, I foresee a few things happening:

From clouds come rain. With no clouds, there would be no rain.

Clouds move moisture from lakes and oceans (where it evaporates up) to mountains and other places inland that spark rainfall. And so vast stretches of land would become desert.

Clouds reflect sunlight and help cool the Earth. With no clouds, the average temperature of the Earth would increase significantly.

And so to summarize what I expect would happen. First, there would be no clouds. Lack of clouds would mean there would be no rain and the average temperature of the Earth would increase, resulting in large areas of land becoming desert.

Explanation:

4 0
3 years ago
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