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Oxana [17]
3 years ago
12

Which of the following marine ecosystems consists of an aphotic zone ?

Biology
2 answers:
m_a_m_a [10]3 years ago
6 0
The open ocean cause light doesn't reach all the way down to the bottom of the ocean. only certain parts of the ocean can light reach.
adelina 88 [10]3 years ago
5 0
To my understanding they all do
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Which one of the following is an example of the chemical modification of an active pharmaceutical ingredient? Group of answer ch
Alexeev081 [22]

Answer: Combining a basic API with citric acid to produce the citrate salt of the API.

Explanation:

Chemical modifications refers to the processes that involve changes in the general composition of drugs to produce another entity with different chemical properties.

From the answer, Basic API combine with citric acid to produce the citrate salt of API which have different chemical properties from the reactants.

8 0
3 years ago
Identifying the genetic sex of a child is based on finding intracellular barr bodies that consist of?
AURORKA [14]

Identifying the genetic sex of a child is based on finding intracellular Barr bodies that consist of inactive chromatin material.

Inactive chromatin material is the one where no transcription takes place. It is also known by the name heterochromatin. It appears as a dark condensed form in the chromatin.

Barr bodies are the inactive X chromosomes. These are mad inactive by a process termed as lyonization. It is essential to make the chromosome inactive in organisms with XY type of sex determination. They are present at the periphery of the nucleus. Inactivation of X chromosome makes the amount of X chromosomes equal in both, males and females.

To know more about Barr bodies, here

brainly.com/question/26376422

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8 0
2 years ago
Elements in group 16 want to bond with elements in group_____
irga5000 [103]

Answer:

oxygen, sulfur, selenium, tellurium, polonium, and ununhexium (O, S, Se, Te, Po, and Uuh, respectively)

Explanation:

i hope it helps all this are 6 valence from electron and form 2-iron.

7 0
3 years ago
The digestive system contains a variety of parts that perform specific functions within the body. The small and large intestines
enyata [817]
Most of the digested food is absorbed in the small intestine-- while the large intestine functions largely to reabsorb water.

Hope this helps!!
3 0
3 years ago
explain why the top of an energy pyramid does not have an arrow showing energy going back down to the bottom.
SCORPION-xisa [38]
<span>The answer to your question is that all of the energy is ultimately radiated into empty outer space as heat. The second law of thermodynamics mandates that all processes that involve the transfer of energy MUST radiate a portion of this energy into space as waste heat. This is why when you run down the street you get hot and sweaty, and this is why automobiles MUST have a functioning radiator and nuclear power stations MUST have evaporation cooling towers or else be located near a large body of water to exchange excess waste heat into, etc., etc. It is also true that the transfer of energy at each step up the food chain is very inefficient. They say it takes around 50 lbs of corn to produce one pound of beef, and it probably takes 20-30 pounds of beef to produce one pound of human tissue. The rest of the energy just goes into your living room as radiated body heat. I hope this helps.</span>
4 0
3 years ago
Read 2 more answers
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