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AveGali [126]
4 years ago
10

2. Why would the first life form probably have been a prokaryote rather than a eukaryote?

Biology
2 answers:
sveta [45]4 years ago
8 0

Answer:

The oldest fossils, between 3.5 and 3.8 billion years old, are then accepted as both the first life and prokaryotic.

Keith_Richards [23]4 years ago
5 0

Answer:

Explanation:

don’t know

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Throwing garbage on the ground, not putting out a camp fire, lighting something that creates smoke...

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dna samples from four different organisms were analyzed using a procedure that separates the dna in each sample by size.What pro
ArbitrLikvidat [17]

Answer:

The correct answer is - Gel electrophoresis.

Explanation:

Gel electrophoresis is a lab technique used to separate distinct samples of mixed DNA, RNA, or proteins on the basis of their size. In gel electrophoresis, the molecules to be move from one another by an electrical field through a gel with small pores in it. DNA molecules are negatively charged so they move towards positive charge wells in the electric field and get separated.

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3 years ago
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3 years ago
The burning of fossil fuels produces carbon dioxide. What effect could a higher concentration of carbon dioxide in the atmospher
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I think The answer would have to be B :)

6 0
3 years ago
Thiobacillus denitrificans is a species of bacteria that obtains its energy from carbon dioxide and inorganic compounds such as
suter [353]

Answer:

Denitrifcation

Explanation:

<em>Thiobacillus dentrificans</em> is the gram-negative bacteria that is considered the chemoautotrophic according to its mode of nutrition.

The <em>Thiobacillus</em> is now used by the bioremediation scientists in the remediation of the wasteland as its ability to convert the reduces nitrogen forms that are nitrates and nitrites back to its dinitrogen state which escapes back into the atmosphere thus completing the nitrogen cycle.

This process of conversion is known as the denitrification and on the basis of this, the bacteria are named dentrificans.

Thus, denitrification is the correct answer.

4 0
4 years ago
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