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ICE Princess25 [194]
3 years ago
14

Approximately how many hours per day do newborns spend sleeping?

Biology
1 answer:
qwelly [4]3 years ago
4 0
They typically sleep about 16-17 hours a day; that’s a lot!
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Chiasma form during meiosis I but not during mitosis. <br> a. True <br> b. False
Goryan [66]

Answer:

True

Explanation:

Chiasma is the site of crossing over. It is an X-shaped site that appears in a tetrad (bivalent) chromosome during the diplotene stage of prophase I of meiosis I. Crossing over refers to the exchange of segments of chromatids and occurs between homologous chromosomes only. Crossing over is the event of prophase I of meiosis I and produce new gene combinations.

The homologous chromosomes are separated from each other but remain attached at chiasmata. The dissolution of chiasmata occurs by the end of prophase I and separates the homologous chromosomes completely from each other. Crossing over does not occur in mitosis. Since mitosis does not include crossing over, chiasmata are also not formed in mitosis.

4 0
3 years ago
Bacteria live in the roots of plants and help the plants to get nutrients. What type of
Lapatulllka [165]
The answer would be C
3 0
3 years ago
Data Analysis
salantis [7]

Answer:

C) none of the species would survive

Explanation:

clam  only goes down to a pH of 4.5

5 0
3 years ago
Read 2 more answers
I have only 3hours to do this hellp me pls need the answer
faust18 [17]
Cytokinesis is the division of the cytoplasm.
Mitosis the nuclear division.

hope this helps
3 0
2 years ago
Draw a 3d DNA for me plz
den301095 [7]
I can't draw very well. but, essentially the shape of DNA is a double helix and A pairs with T and T pairs with A. C pairs with G and G pairs with C. No matter what in DNA. What one side has the other side has. The other will always have the match to it on the other side

A= adenine
T=thymine
C=Cytosine
G=guanine

6 0
3 years ago
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