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bija089 [108]
3 years ago
15

Pls help will mark brainliest

Biology
1 answer:
Readme [11.4K]3 years ago
3 0

Answer:

do it as biggest to smallest, cells from the start and the balls towards the end.

Explanation:

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Is it possible that after the first meeting of male and female through sexual inter course
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Answer:

Yes, it is possible because, if the sperm from the male goes into the egg of the female it can cause the female to get pregnant by that male. And its very rare for the female not to get pregnant after having inter course with the male. That's only if they had unprotected sex.

I hope this helps you!

XoXo Mashayla

Explanation:

3 0
3 years ago
Please help tyyyyy :)
rosijanka [135]

Answer:

Hard

Explanation:

it is hard because these are usually hard parts of an organism including shells, bones, teeth, woody trunk, stems, and branches.

3 0
3 years ago
Polypeptides and proteins must fold properly to be functional. Hydrogen bonds between the oxygen and nitrogen atoms of the pepti
valkas [14]

Answer:

The correct answer is option 3. "secondary structure".

Explanation:

The secondary structure of polypeptide and proteins refers to the second order of folding, including common structures such as beta sheets, alpha helix, as well as turns and loops. The hydrogen bonds between the oxygen and nitrogen atoms of the peptide bonds are crucial to secondary structures, as these hydrogen bonds form and stabilize the aforementioned common structures.

4 0
3 years ago
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-Saharan Africa than among those o
ArbitrLikvidat [17]

Ans.

Sickle-cell disorder shows defected red blood cells, due to mutation in gene that code for hemoglobin. The mutated genes for sickle-cell disease are found in higher percentage of sub-Saharan African population as it provides protection against malaria as compared to population of United States.

Malaria is common in sub-Saharan Africa region and there, natural selection favored gene for sickle cells, because it might be beneficial to people having sickle cell disease that makes them able to survive in such condition and transmit their genes to offspring.

On the other hand, in those Africans, who moved to United States, where malaria is uncommon or absent, natural selection favored normal, wild type genes, resulting in fewer people with defected sickle cell.

Thus, the evolutionary process behind this is 'natural selection.'

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3 years ago
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Vera_Pavlovna [14]

Answer:

Number 3, Desert

Explanation:

5 0
3 years ago
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