Biologists estimate how long ago species separated from a common ancestor using a technique called

2 answers:

8 0

<span>The answer is molecular clocks.

Molecular clocks use rates of mutation to measure evolutionary time. This technique is based on the fact that mutations add up at a fairly constant rate in the DNA of species that evolved from a common ancestor. The more mutations that happened in each lineage, the greater is the differences between these lineages and vice versa.</span>

GenaCL600 [577]3 years ago

8 0

Your answer is <em>molecular clocks</em>.

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elena-14-01-66 [18.8K]

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2 years ago

What are some of the challenges scientists most overcome when studying extreme environments such as deep space or the deep ocean

kvv77 [185]

Let us look at the what, why and how of studying extreme places like the deep earth and the deep space. Scientists need to figure out as to 'what' they want to look at such places, be it a new exotic creature or bio-genesis (birth of life). Unless there are several testable hypothesis constructed, such a study cannot begin. The 'why' aspect deals with the purpose of such research and expeditions. Is it of any use to the humans, or will it improve our current understanding of a phenomenon? The 'how' aspect deals with the technology and the economic assistance that can help in undertaking such a research. All these are the challenges that needed to be thoroughly considered to make such a research or expedition possible.

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2 years ago

what type of reasoning uses the general knowledge of science to make predictions about specific cases.

Helga [31]

Deductive reasoning.

Deductive reasoning is a type of reasoning where a general fact is broken down into a more specific case to make an inference. This general fact can be a broad branch of knowledge then gets into its parts that may comprise this broad knowledge.

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2 years ago

An enzyme _____. is an organic catalyst is a inorganic catalyst can bind to nearly any molecule is a source of energy for enderg

Sidana [21]

An enzyme is an organic catalyst.

<h3>What is an enzyme?</h3>

Enzymes are proteins that help speed up metabolism or the chemical reactions in our bodies.

They build some substances and break others down.

All living things have enzymes. Our bodies naturally produce enzymes.

But enzymes are also in manufactured products and food.

Examples of specific enzymes:

Amylase: In the saliva, amylase helps change starches into sugars.

Maltase: This also occurs in the saliva, and breaks the sugar maltose into glucose.

Trypsin: These enzymes break proteins down into amino acids in the small intestine.

To learn about enzymes, refer

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1 year ago

What ultimately controls the cell's production of proteins? A. DNA B. RNA C. protein D. allele

Alona [7]

DNA is the ultimate control of cell's productions. So A.

3 0

3 years ago