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Leto [7]
4 years ago
11

Pls help im in hurry plz

Biology
1 answer:
OverLord2011 [107]4 years ago
4 0

Answer:

cohesion and adhesion

Explanation:

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which type of cell division (mitosis v meiosis) increases the likelihood of variation with a species? explain how it happens?
kipiarov [429]
Meiosis Bc it is genetic variation and ends with 4 cells with a completely different genetic make up whole mitosis is the cell division of identical cells. It ends with two daughter cells.
5 0
3 years ago
Explain how fertilization occurs
alex41 [277]
<span>I'm assuming this in plants.

Brief-ish answer:

"Fertilization in plants occurs when pollen grains are transported from anthers to stigma. When ripe pollen from an anther catches on the stigma of the same kind of flower, each pollen grain sends out a small thread-like tube."

Here's a fuller answer:

"</span>Fertilization occurs after pollination, when pollen grains land on the stigma of a flower of the same species. During this time, a series of events take place leading to the formation of seeds. A pollen grain on the stigma develops a tiny tube that runs down the style of the ovary. The pollen tube contains a male gamete which meets the female gamete in the ovule. Fertilization occurs when the two gametes combine and their chromosomes join. The resulting product is a normal complement of chromosomes, with some from either parent flower. The fertilized ovule forms a seed, which consists of a food reservoir and an embryo that later develops into a new plant. In gymnosperms (conifers) male gametes are enclosed in pollen grains and are transmitted by wind or insects to the female reproductive organs. Fertilization in angiosperms (flowering plants) occurs when insects or other animals transport the pollen to the female reproductive organ (pistil).<span>
</span><span>Fertilization is the fusion of gametes to launch the development of a new individual organism. In animals, the process entails the combination of ovum with a sperm, leading to the development of an embryo. Fertilization in plants occurs when haploid gametes meet to create a diploid zygote, which eventually forms an embryo.</span><span>"

source: </span>https://www.reference.com/science/plant-fertilization-occur-ccf48c80e72fc410
5 0
3 years ago
1)The cell theory includes all of these concepts exceptA)all cells come from the division of preexisting cells.B)each cell maint
Anna71 [15]

Answer:

They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function.

Explanation:

4 0
3 years ago
During periods of extreme stress a client may experience elevated blood pressure, dilated pupils, and increased respirations. th
d1i1m1o1n [39]
The answer is <span>hy<span>pothalamus.</span></span>

<span>The hy<span>pothalamus <span>regulates the </span></span></span><span>sympathetic nervous system, part of </span><span> autonomic nervous system, </span><span>associated with fight-or-flight </span><span>responses.
During stress situations the sympathetic nervous system is more activated, causing a response of either run or fight. Because of that, the body needs to be prepared and there will be elevated blood pressure (the blood is going more to the skeletal muscle, heart,etc), dilated pupils (for better peripheral vision) and increased respiration. </span>
7 0
4 years ago
Answer this question. What are the main differences between bacteria and archaea?
Arisa [49]

Answer:

they are two different oranisms

Explanation:

and they share azotobacter , bacteroids

7 0
3 years ago
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