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Svetlanka [38]
3 years ago
13

Instead of oxygen, __________ may utilize nitrate or sulfate as their final electron acceptors

Biology
1 answer:
Gnom [1K]3 years ago
5 0
The answer to this question would be: obligate anaerobe

In anaerobic reaction, oxygen is not used. That is why anaerobic microbes can live without oxygen. But the energy that was produced by this reaction is much less than aerobic reaction. That is why a more complex organism more likely to be able to do the aerobic reaction.
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Which statement best explains why the skin cell and intestinal epithelial cell are different?
malfutka [58]

The statement 'Skin cells and epithelial cells each make a different set of proteins, which determines each cell type's structure and function.' is correct. It is known as differentiation.

<h3>What is differentiation?</h3>

Differentiation refers to the cellular phenomenon for which different genes are expressed in specific cell types.

Differentiation leads to the formation of different cell types that have specific functions/roles.

Differentiation depends on gene expression pattern that influences the type and amount of proteins in a given cell.

Learn more about differentiation here:

brainly.com/question/13846411

6 0
2 years ago
Which of the following represents an abiotic component of a forest community? A) the oak and hickory trees B) the mushrooms grow
mixas84 [53]
Abiotic refers to NONLIVING things. Such as rocks..

Sooooo it would be water because although there are so many living things in water the actual chemical compound of H2O is nonliving.


C
7 0
3 years ago
The oldest oceanic crust is
Dafna11 [192]

The oldest oceanic crust is found at the mid-ocean ridges. Thus, option "A" is correct.

<h3>How old is the youngest oceanic crust?</h3>

The ocean crust is about younger than 200 million years (for example, smaller than 5% of the age of the earth).

The crust is most naive (still being created by volcanic eruptions) along the axis of the mid-ocean ridges and increases in age down the sides of the mid-ocean rises and out onto the more serious basin floors.

Thus, option "A" is correct.

To learn more about oceanic crust  click here:

brainly.com/question/1101764

#SPJ1

3 0
2 years ago
Analyze the role of dna fingerprinting in criminal investigation.
nikitadnepr [17]

DNA/fingerprints are all unique, therefor it is easy to match a fingerprint to a person thus they use this mechanism in criminal investigations because only one person woul have matching DNA to the prints on the scene, and that is the criminal.

Hope this helps :)

8 0
4 years ago
What type of stream valley forms in mountainous areas?
Alex73 [517]

The type of stream valley likely to form in a mountainous area is a V- shaped valley. This is a narrow valley that has a profile giving the impression of the letter V. This kind of valley is characterized by steeply sloping sides. It results from a stream eroding downward, a process referred to as downcutting. V - shaped valleys form in mountains or highland areas where streams are in their youthful stage and are flowing rapidly down steep slopes.

7 0
3 years ago
Read 2 more answers
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