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valina [46]
2 years ago
8

I’ll give brainlist to right answers only! There are three questions.

Biology
1 answer:
Anettt [7]2 years ago
8 0

Scientists found that the first living things were likely prokaryotic because eukaryotic are evolved from the prokaryotic only.

<h3>What do you mean by Natural selection?</h3>

Natural selection may be defined as favorable variations that assist the organisms to survive and reproduce in a particular habitat.

Individuals that are better suited to their environment are likely to have more offspring and pass their genetic material on to future generations. This theory is referred to as Natural selection.

Scientists hypothesize that oxygen began to accumulate in the Earth's atmosphere after the appearance of living things with the ability to Photosynthesize.

To learn more about Photosynthesis, refer to the link:

brainly.com/question/19160081

#SPJ1

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Answer:

25%

Explanation:

According to this question, a seek stored seeds of a rare and endangered plant. In order to ensure that the seeds remain fresh, 120 seeds are selected to be grown. However, out of these 120 seeds, only 90 germinated. This means that only 90 of 120 seeds are fertile.

This further means that (120-90) = 30 seeds are infertile and hence, could not germinate. In percentage, this can be represented as:

30/120 × 100

= 1/4 × 100

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= 25% of the selected seeds are infertile.

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Hope this helps!
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