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Rufina [12.5K]
3 years ago
15

What is a chemical transmitter?

Biology
1 answer:
Leni [432]3 years ago
3 0
<span>it is the substance which transmits the nerve impulse from pre - synaptic  to post - synaptic membrane .</span> <span> </span>
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Pls answer its due soon!!!
pickupchik [31]

Explanation:

Meiosis makes genetic variety possible. It makes sperm & egg cells called gametes. Each gamete has 23 chromosomes. To make a diploid cell two gametes (sperm & cell) come together.

During prophase 1 the chromosomes pair up with their homologous pairs so they can transfer their genetic information and exchange it between each other. It makes recombinant chromosomes that influence the genetic diversity between the same people.

Now they are in metaphase 1, the chromosomes are in pairs in the middle of the cell. In anaphase 1, the chromosomes are pulled away by the spindle fibers. Then in telophase 1, there are two formed nuclei. Cytokinesis 1 then splits the cytoplasm.

Now they are in meiosis 2. During prophase 2, there are chromosomes and the spindles are starting to form again without crossing over like in prophase 1. In metaphase 2, chromosomes are going to line up in the middle in both cells unlike during metaphase 1 where the chromosomes were only in pairs.  In anaphase 2, only the chromatids are being pulled away by the spindle fibers. Next in telophase 2 the nuclei reform and the 2 cells are each going to divide into 4 cells. Finally, cytokinesis completely splits the cytoplasm.

Keeping in mind that each sex only produces one type of gamete cell (sperm or eggs), and of the independent assortment and crossing over of chromosomes, the end result will be diversity.

5 0
3 years ago
Match the enzymes with the molecules they help break down<br> a. Amylase<br> b. Pepsin<br> c. Lipase
Vika [28.1K]

Answer:

The correct  matches are given as follows:

a. Amylase - Starch

b. Pepsin - Protein

c. Lipase- fats

Explanation:

The digestion can be defined as the breaking down of the complex compounds of food into simpler compounds for their better absorption. There are various enzyme that help in the process of digestion. Amylase, pepsin, and lipase are enzymes.  The amylase is an enzyme responsible for breakdown of starch. The pepsin is responsible for the breakdown of protein into amino acids. The lipase is responsible for breakdown of fats.

3 0
3 years ago
During which phase of mitosis do nuclear membranes form around 2<br> sets of chromosomes
Alexandra [31]

Answer:

Telephase

Explanation:

6 0
3 years ago
Muscle fibers are arranged in bundles called ___________.
Verdich [7]
Muscle fibers are arranged in bundles called tendons
4 0
4 years ago
Read 2 more answers
Define homeostatsis
qaws [65]

The tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.

Hope this helps! ;)

4 0
4 years ago
Read 2 more answers
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