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Likurg_2 [28]
3 years ago
10

Which of the following is formed during pollen grain development?

Biology
1 answer:
serious [3.7K]3 years ago
4 0
<span>(C)Polar nucleus hope this helps

</span>
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The genetic disease blue sclera is determined by an autosomal dominant allele. The eyes of individuals with this allele have blu
aleksandrvk [35]

Answer:

Pleiotropy

Explanation:

Pleiotropy is a condition that occurs when one gene affect several other phenotypic traits that are not related. The autosomal dominant allele of the genetic disease called blue sclera, is pleiotropic. It has the potential of causing also fragile bones and deafness which are entirely unrelated traits. Genetic mutation of a gene is the most likely explainable reason for the connection of these traits together.

5 0
3 years ago
Name two substances in the body that will move based on the principles of diffusion
almond37 [142]
Two substances in the body that will move based on the principle of diffusion are CARBON DIOXIDE AND OXYGEN.
Diffusion is the process by which molecules of a substance move from the region of higher concentration to the region of lower concentration. Carbon dioxide and oxygen can easily move in an out of the cell via diffusion.<span />
6 0
3 years ago
In some plants, phloem cells are connected end-to-end by sieve plates, creating a direct connection between the cytoplasm of phl
ella [17]

Answer:

Explanation:

This is because the sieve plate interconnected like that help in exchange of substances or transport of substances between element cell and it act as a barrier to prevent the sap from been loss when phloem is damaged or cut. The sieve plates form the sieve tube which is the conducting element of the phloem. It is formed from series of elongated cells that are interconnected by perforations in their walls.

6 0
3 years ago
How do scientists study earthquakes and what information might be provided?
dmitriy555 [2]

Seismometers and Seismographs

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How have human activities modified ocean systems?
jasenka [17]

Answer:

all of the above.

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