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3 years ago

Complete the sentences using the given words.

Biology

1 answer:

ivanzaharov [21]3 years ago

5 0

Answer

A) crater

B) caldera

C) composite

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Which of the following adaptations to life on land is found in both insects and modern reptiles?

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Which of the following adaptations to life on land is found in both insects and modern reptiles?

I'm not 100% sure, but I think the correct choice is tracheae to distribute oxygen (B).

Hope this helped :)

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3 years ago

Although the citric acid cycle itself does not use O₂, it requires a functioning electron transport chain (which uses O₂) in ord

IrinaVladis [17]

Answer:

Explanation:

It's NAD+ because if you look at the electron transport chain, NADH delivers its electron to protein 1 (which causes NADH to turn to NAD+) and eventually those electrons move through multiple proteins to finally be accepted by Oxygen. If there's isn't oxygen, NADH won't be able to deliver electrons since those electrons wont end up anywhere. Which means NADH won't be oxidized (lose electrons) to turn into NAD+. NAD+ is necessary in citric acid cycle since it is reduced to turn into NADH.

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4 years ago

Give two examples of homeostasis in the digestion process?

iris [78.8K]

Answer:

Two examples may be

1. Acid and Base balance

and/or

2. Fluid volumes

Explanation:

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3 years ago

What is the last part of the digestive system?

Ipatiy [6.2K]

D i did this before and this is the answer

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3 years ago

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Peptidoglycan is a polymer of millions of N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) sugars based on glucose molec

padilas [110]

Answer:

d) short amino acid chains, NAG, NAM, and some lipid proteins

Explanation:

Bacterial cell walls are made up of a rigid layer that is responsible for the resistance of the cell wall. This layer is called Peptidoglycan.

The basic structure of peptidoglycan is:

- A long chain of sugar derivatives, N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM). These two sugars are linked together by glycosidic bonds. Although these links are strong and make up the structural backbone, they are not sufficient to give the wall rigidity.

- The amino acids (L-alanine, D-alanine, D-glutamic, and Lysin) play an important role as peptide bridges that cross-braced the chains, joining the N-acetylmuramic molecules (NAM) together, giving greater rigidity to the structure.

Lipid proteins embedded in the wall with structure functions can also be found in the cell wall.

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4 years ago