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Svet_ta [14]
2 years ago
8

In what era did single-celled organisms like bacteria form? WORTH 20 POINTS

Biology
1 answer:
Fantom [35]2 years ago
8 0

Answer:

3.5 billion years ago, or in the Eoarchean Era.

Explanation:

The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.

The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era.

Have a fantastic rest of your day!! \(^u^\)

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Different types of species
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Compare and contrast polysaccharides and nucleic acids in terms of monomer diversity and how they monomers are joined together
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The monomer units of the carbohydrates vary in their total numbers extensively. Moreover, positions of the carbonyl groups along with the orientation of the hydroxyl groups also vary in the carbohydrates' monomers. The presence of any modification is also variable.

On the other hand, the nucleic acids have only 4 monomeric units. The linkages between the nucleic acid residues have less geometry than the glycosidic linkages.

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Which of the following organelles is part of the endomembrane system? A) Ribosomes B) Golgi apparatus C) Mitochondria D) Centrio
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The answer is B)

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7 0
3 years ago
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Which statement best describes the evolutionary significance of mutualism?
krok68 [10]

Answer:

C) Interaction increases the survival and reproductive rates of mutualistic species.

Explanation:

A) Mutualism offer more biodiversity to a community.

    Biodiversity is the different species living in one environment. Since mutualism is only involving two species, it wouldn't increase the biodiversity of one ecosystem, making it incorrect.

B) Individuals partaking in a mutualistic relationship relationship are more resistant to parasites.

    Mutualism is only benefiting two species, not their immunity to diseases and parasites. These two have no correlation with each other, making it incorrect.

D) Mutualistic interaction lessens competition in communities where it is present.

    Since mutualism is only benefiting two species, they have no correlation since the relationship doesn't affect the different species in the environment.

E) Mutualistic relationships allow organisms to synthesize and use energy more efficiently.

    Although there could be some relationships involving energy transfer between the species, that would sound more like commensalism or even paratsitism if you think about it. However, it is very uncommon and usually energy has no relationship with species relationships, making it incorrect.

Hope this helps! My deepest apologies if I got in incorrect!

5 0
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Answer:

Increase

Explanation:

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6 0
3 years ago
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