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umka2103 [35]
3 years ago
15

Please tell me, in your own words, what you know about the ideas of natural selection

Biology
1 answer:
Oksanka [162]3 years ago
3 0

Explanation:

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

In the theory of natural selection, organisms produce more offspring than are able to survive in their environment. Those that are better physically equipped to survive, grow to maturity, and reproduce. ... Biologists have since observed numerous examples of natural selection influencing evolution.

hope it helps u

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Give three reasons why you might have a situation in which bacterial colonies were found on the first section of a streak plate,
Agata [3.3K]

Hi. You have not shown the sections this question refers to, nor have you provided more information about those sections. This makes it difficult for your question to be answered. However, I will try to help you as best I can.

Generally speaking, we can consider that there was no growth of bacterial colonies in sections 2 and 3, because, for some reason, the bacteria was not inoculated in sections 2 and 3. What could also have happened, is that the bacteria in the sections 2 and 3 were eliminated, but the bacteria from section 1 managed to survive and form colonies.

Another possibility is that after inoculating the bacteria in section 1, you didn't handle the bacteria correctly in the other sections, leaving that bacteria to dry out and die.

Finally, the culture media in sections 2 and 3 could be inappropriate for bacteria to develop and form colonies.

7 0
2 years ago
What organelle breaks down and recycle worn out cells?
Musya8 [376]
Lysosomes break down and recycle worn out cells.
3 0
3 years ago
Smooth endoplasmic reticulum:__________.1) Smooth endoplasmic reticulum stores calcium ions in muscle cells. 2) Is the major sit
Darina [25.2K]

Answer:

3

Explanation:

I learned this last semester

7 0
3 years ago
The Monterey pine and the Bishop's pine inhabit some of the same areas of central California. The Monterey pine releases pollen
Naddik [55]

Answer:

The Monterey pine and the Bishop's pine inhabit some of the same areas of central California. The Monterey pine releases pollen in February, while the Bishop's pine does so in April. This is an example of <u>temporal</u> isolation.

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Temporal isolation is a form of reproductive isolation in which two or more species reproduce at two separate times.

<u>For example:</u> Northern america leapord frog mates in April and North America Bullfrog mates in july.

As in the given scenario, reproductive isolation is occuring in which two species (Monterey pine and Bishop's pine) are reproducing (producing pollens) at two separate times(February and April). Hence it is an example of temporal isolation.

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alexira [117]
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2 years ago
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