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Volgvan
3 years ago
8

What embryo-produced hormone maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of p

regnancy?
Biology
1 answer:
7nadin3 [17]3 years ago
6 0

Answer:

Human chorionic gonadotropin

Explanation:

Human chorionic gonadotropin is a hormone produced after the implementation with the function to promote the maintenance of the corpus luteum during the beginning of pregnancy. This is important because hormones produced by corpus luteum, such as progesterone enrich the uterus with f blood vessels so that it can sustain the growing fetus.

Human chorionic gonadotropin is often used in pregnancy tests, since its presence indicates pregnancy.

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which principles states, that in undisturbed rock layers, the oldest rocks are on the bottom and the youngest rocks are on top
Leviafan [203]

Answer:

The correct answer is principle of superimposition.

Explanation:

According to the superimposition principle, in the undisturbed rocks, the youngest rocks are situated on the top and the oldest rocks are found in the bottom. The phenomenon takes place due to withering. The rocks get withered because of the influence of air and water.  

The soil particles or the sediments get gathered at another site. The deposits of sediments get concentrated with time and result in the production of rocks. The mature rocks get surrounded by the layers of sediments with time passing by. These sediments get concentrated again to produce novel rocks. Through this procedure, the fresh young rocks get produced over the older ones.  

3 0
3 years ago
What is an unicellular
kramer
U·ni·cel·lu·laradjective
BIOLOGY(of protozoans, certain algae and spores, etc.) consisting of a single cell.(of an evolutionary or developmental stage) characterized by the formation or presence of a single cell or cells. 
Hope this helps!
3 0
3 years ago
Read 2 more answers
How can find the sentences clues here , what is the positive and the negative
kirill [66]
1)A-john take the cut in pay is positive because he still has a job, negative is he has less pay. B- loose his job he can get a new one with more pay .
2)A- positive Helen move to with her family and not be alone, negative she looses a semester at school. B- positive she stays a school and can finish the semester, negative she stays alone.
3.A) positive Bill picks pecan he likes it, negative he picks pecan he doesn't like it. B) positive He picks cherry he likes it, he picks cherry he doesn't like it
5 0
3 years ago
Why do cells have so many different organelles and structures?
dexar [7]

Answer:

they have many different organelles and structures because the cell needs them for survival just like the human body has many structures for us to survive and live.

3 0
2 years ago
What feature enables eukaryotic cells to keep biochemicals and related structures in close proximity and increase efficiency wit
Vlad [161]

According to the research, the correct option is cell membrane. It enables eukaryotic cells to keep biochemicals and related structures in close proximity.

<h3>What is cell membrane?</h3>

It is defined as a laminar structure formed mainly by lipids and proteins that prevents the entire biochemical content of the cell from dispersing and defines its limits.

It enables the exchange of water, gases and nutrients between the cell and the environment that surrounds it and has proteins that perform functions of connection, transport, reception and catalysis.

Therefore, we can conclude that according to the research, the correct option is cell membrane. It enables eukaryotic cells to keep biochemicals and related structures in close proximity.

Learn more about eukaryotic cells here: brainly.com/question/3171977

#SPJ1

8 0
1 year ago
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