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erma4kov [3.2K]
3 years ago
15

2. What were the earliest organisms to evolve?​

Biology
1 answer:
zavuch27 [327]3 years ago
7 0

Answer:

Both bacteria and blue algae are prokaryote organisms, meaning that they do not have a differentiated nucleus, and therefore they are more primitive. But blue algae are able to perform photosynthesis and so we can believe that the first forms of life on Earth date even further back than 3 and a half billion years ago.

Explanation:

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Which statement best indicates the accuracy of the mother's comment?
Oksi-84 [34.3K]
I would say probably the second one. Hope this helps and good luck!
5 0
3 years ago
EASY BRAINLIEST
Anastasy [175]

Answer:

D) Both lack membrane-bound organelles and are single-celled.

Explanation:

The answer is D because the main difference between Archaea and Eubacteria is they differ in the formation of their cell wall. Archaea's cell walls are made of  uncommon lipids while Eubacteria have cell walls made of peptidoglycan.

8 0
3 years ago
The Calvin cycle of photosynthesis begins when
Oliga [24]
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3 0
3 years ago
You perform an experiment on two plants of the same species to find out what soil affects their growth the most. Both plants are
Nezavi [6.7K]

Answer:

Independent Variable - Soil, Dependent Variable - Height, Control Variable - Sun and Water

Explanation:

First we should define what the variables in the experiment are.

Independent variable is the aspect of the experiment that has a different value for each subject in order to find out how it affects the dependent variables.

Dependent variable is the variable that is kept under observation and recorded by the experimenters in order to track the changes and define its relationship with the other variables/parameters.

Control variable is the variable that is kept constant intentionally by the experimenters to be able to define the relationship between the other variables more clearly and easily.

In the example given in the question, there are one of each variable mentioned above which are, according to the definitions;

  • Independent Variable - The Soil
  • Dependent Variable - The Height Of The Plant
  • Control Variable - The Amount of Water and Sun Exposure

I hope this answer helps.

3 0
3 years ago
Which of the following would a specialized tissue cell NOT differentiate into?
user100 [1]

Answer:

C. Stem Cell

Explanation:

Because a specialized tissue cell is a stem cell and cells that are already specialized cannot go back to being a stem cell.

7 0
3 years ago
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