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Doss [256]
2 years ago
13

Pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee and thank youuuuuu

Biology
1 answer:
bagirrra123 [75]2 years ago
3 0

Answer:

trachea is not part of that system, that's a different system.

Explanation:

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Explain how the principles of ecology relate to how adaptations occur.
frutty [35]

Answer:

Species are adapted to their environments. By understanding the interactions within an ecosystem, scientists can develop an understand of how populations evolve (develop gradually) in response to their environment.

3 0
3 years ago
Angiosperms do not need water for fertilization. Why? (3 points) Group of answer choices Flagellated sperm travel to the ovary i
astraxan [27]

Answer:

A pollen tube grows from the pollen grain into the ovary

Explanation:

Water is needed for fertilization in several plant groups because the sperm needs to swim to meet the non-motile eggs of the female organs.

<em>However in angiosperms, the pollen germinates and a structure known as pollen tube which contains the male gametophyte (sperm) grows into the ovary where the ovule is located and the male gametophyte is deposited in the ovule to initiate the fertilization process.</em>

<em>Hence, water is really not necessary for fertilization in the angiosperms.</em>

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Which of the following statement is true of a semi-conservative model of replication?
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Answer - A
Semi-conservative model of replication involves the replication of DNA in all the familiar cells in such a way that each newly synthesized daughter cell contains a double helix with one new strand and one old strand.

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3 years ago
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situations in which one allele for a gene is not completely dominant over another allele for that gene are called....
stiks02 [169]
This is called incomplete dominance. When an something is heterozygous for an incomplete dominant gene, the resulting phenotype will be somewhere between the two. For example if a plant has a tall allele and a short one, but neither shows complete dominance over the other, the plant height will be somewhere in the middle.
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Mixing carbon and iron to make steel is a physical change or chemical change <br>​
ICE Princess25 [194]
Its a physical change!
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