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vovikov84 [41]
3 years ago
15

Can someone help me pls ASAP

Biology
1 answer:
masha68 [24]3 years ago
6 0

Answer:

I think number 3 since they have the most in common

Explanation:

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Help please !!!!! It’s a test
astra-53 [7]

Answer:

A question is never clear

5 0
3 years ago
What most likely happen to this grass in this environment if there was no rain for a long time?
valentinak56 [21]

Answer:

d

Explanation:

D the grass will become dry and die

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2 years ago
The hypothesis that all modern humans descended from an african lineage ____. has been conclusively proven to be correct is supp
Juliette [100K]
The hypothesis that all modern humans descended from an African lineage is supported by the mitochondrial DNA evidence. The Eve hypothesis is the hypothesis that is based on the study of mirtochodrial DNA; that modern humans have a common female ancestor who lived in Africa around 200,000 years ago. It is also called African Eve hypothesis. 
4 0
3 years ago
Steroid hormones exert their action by ________. A. entering the nucleus of a cell and initiating or altering the expression of
Blizzard [7]

Answer:

The correct option is A. Steroid hormones exert their action by entering the nucleus of a cell and initiating or altering the expression of a gene.

Explanation:

Steroid hormones are derived from cholesterol and regulate multiple biological processes. All steroid hormones exert their action by crossing the plasma membrane and by binding with their respective intracellular receptors. They stimulate cell growth in a very different way, their lipophilic nature gives them the ability to cross lipid barriers, so, without the need for extracellular signals, these hormones can easily enter the cell, cross the cytoplasm and reach the nucleus. There they bind to specific receptors that are associated with DNA promoter regions, modifying their structure and promoting the expression of the genes under their control.

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3 years ago
Why does the starch remain present and is detected by iodine in the boiled solution?
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Answer:

Amylose in starch is responsible for the formation of a deep blue color in the presence of iodine. The iodine molecule slips inside of the amylose coil. ... A blue-black color results if starch is present. If starch amylose is not present, then the color will stay orange or yellow. I hope this helps!

4 0
2 years ago
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