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vlabodo [156]
3 years ago
15

In the process of embryonic development, which stage comes first?

Biology
2 answers:
arsen [322]3 years ago
8 0
I believe the answer is D.
Kobotan [32]3 years ago
4 0
Your answer is most likely:
B. Morula
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Enkephalins and endorphins are peptides that act like morphine. True or False
mariarad [96]

Answer:

True.

Explanation:

Enkephalins and endorphins are endogenous peptides while morphine is an exogenous peptide.

Enkephalins and endorphins are powerful analgesics 18 to 500 times more than morphine. Hence, morphine is less analgesic than enkephalins and endorphins.

Enkephalins and endorphins act on the  mu, kappa , delta receptors and morphine also acts on the same receptors. All of them has same effects on the body.

Hence, Enkephalins and endorphins are peptides that act like morphine.

4 0
3 years ago
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. Jack and Jill are thinking about starting a family and they come to you with a question about a rare recessive genetic disease
cupoosta [38]

Answer:

The chance of  having a Child who is a Heterozygote  is 50% , The chance of having a child that will completely come down with Alpers syndrome is 0%

Explanation:

Jack  has a history of Alpers in his family

Jill has no history

lets assume Jack is a carrier : Ab ( because that is how he could have survived the first 10 lethal  years )

Jill : AA

Therefore the probability/chance of Jack and Jill having a child with Alpers ( carrier ) syndrome will be 50 % as shown below

AA * Ab = AA , Ab, AA, Ab

The child produced by Jack and Jill will only be a carrier of the syndrome and not completely affected by the syndrome

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3 years ago
Before cell reproduction or mitosis can proceed, what is the correct sequence of steps that must first occur?
ollegr [7]

D.growth, duplication of cell organelles, chromosome replication, repair of chromosomal errors

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Which of these would be the most helpful when identifying a mineral?
hodyreva [135]
All of them, they are all very important factors to test for the identifying
3 0
3 years ago
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Experiments with isotopes used as tracers showed that some fungi _____. A. help plants get nutrients in exchange for sugar B. ta
Dvinal [7]

The answer I would choose is D. Help plants by providing them with sugar

You can tell me if i'm wrong.

6 0
3 years ago
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