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Anna [14]
3 years ago
13

Why are volcanoes and volcanic activity a good example of system interactions?

Biology
1 answer:
Elis [28]3 years ago
8 0
They erupt after a long period of time.
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Why does the density of liquid water increase as it cools?
CaHeK987 [17]
Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density
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3 years ago
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Species a diverged from species b 60,000 years ago. On a particular gene, they have 15 nucleotide differences. How many nucleoti
a_sh-v [17]

The given question says that b species diverged around 60,000 year ago from species a. Since the divergence, they have a nucleotide difference of 15 nucleotide.

We need to find out the nucleotide difference in another 240,000 year, which means a total of 300,000 year since divergence.

The nucleotide difference in 60,000 years = 15 nucleotide.

The nucleotide difference in 1 year =\frac{15}{60,000}  nucleotide.

The nucleotide difference in 300,000 years = \frac{15}{60,000}\times 300,000 nucleotide.

The nucleotide difference in 300,000 years = 75 nucleotide.

Hence, after another 240,000 years or 300,000 years since divergence, the species and species b would show a difference of 75 nucleotide.

In another 240,000 years, there would be 60 nucleotide difference, as 15 of the nucleotide are already different in initial 60,000 years from the total of 75 nucleotide difference in 300,000 years. So, 60 (75-15) nucleotide difference would be observed in next 240,000 years.


4 0
3 years ago
Cellulose-digesting microorganisms live in the guts of termites and ruminant mammals. The microorganisms have a home and food, a
Yuki888 [10]

Answer:

The correct answer is: mutualism

Explanation:

Mutualism refers to a relationship between two organisms, where both organisms benefit from the association. In this instance, the relationship between cellulose-digesting microorganisms and their hosts-  termites and ruminant mammals- is characterized by mutualism because both organism benefit from their association. The microorganisms benefit by getting their nutrition from the cellulose in guts of their hosts. Whereas, the hosts benefit from the cellulose-digesting microorganisms by getting help in digesting the cellulose they consume in their diet.

6 0
3 years ago
Anyone know this? cell cycle phases
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Answer:

DACEB

Explanation:

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4 years ago
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<span>The answer is A. Variation in gene pool
Speciation is a formation of a new species during the evolution line. When there is a variation in a gene pool, a unique combination between genes could be formed during the mating process. This will create an offspring with unique gene pool that will lead to speciation</span>
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