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KatRina [158]
3 years ago
15

In natural selection, what is actually “selected?”

Biology
2 answers:
pochemuha3 years ago
6 0
B) Genotypes are directly selected
IceJOKER [234]3 years ago
4 0
The answer is Genotypes are directly selected.
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what will happen if one of the levels in the biological organization will not perform its function properly?​
Sedaia [141]

Answer:

It would affect the functionality of the other levels including the organism

Explanation:

The level of biological organization is a hierarchical step consisting of how a multicellular organism forms. According to this level of organization, CELLS are the simplest unit of life and the collection of cells with a similar function is termed TISSUE. Tissues form ORGANS, organs form ORGAN SYSTEMS and finally, a collection of all the systems in the body forms the ORGANISM.

Based on this, one would observe that each level is related to the next in such a way that one forms from the other. Hence, if one of the levels in the biological organization will not perform its function properly, the other levels will be affected. For example, if the kidney cells do not perform it's function, it would affect the functionality of the kidney tissues, kidney organ, the excretory system, and the organism at large.

7 0
3 years ago
Do all cells of the body express the same genes?
aleksklad [387]

All cells in the body have the same DNA and the same genes. In organs & tissues the expression changes.

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3 years ago
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Answer:

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Explanation:

4 0
2 years ago
How did Mendel make the F1 generation plants
ivolga24 [154]
100% of the plants express the dominant trait
6 0
2 years ago
Select the correct statement about double fertilization in the angiosperm life cycle. a. Double fertilization results from the f
erastovalidia [21]

Answer:

Double fertilization produces a diploid sporophyte and a triploid endosperm. (Ans. C)

Explanation:

Angiosperm are plants which is known for flowering plant on the earth. The flower is reproductive parts of the angiosperm plant. They are including 4 basic parts of the flower: Carpel, Stamens, Sepals and Petals.

During angiosperm plant reproduction, 2 structure are formed which are known as the Endosperm and a Zygote. Later a Zygote will grow and form a embryo and the endosperm is known for food source of plant embryo. Endosperm and Zygote forming process is known as double fertilization and it is a unique process found in angiosperms.

Steps involved in double fertilization are:

1) The pollen tube processing to release 2 sperm cells into an unfertilized ovule.

2) When one sperm cell fuses with the eggs to the formation of zygote and another sperm fuses with the 2 polar nuclei to the formation of endosperm this process is known as double fertilization.

3) After the completion of double fertilization, a fruit and seed develop.

8 0
3 years ago
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