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d1i1m1o1n [39]
3 years ago
9

Help answer !!!!!!!!

Biology
1 answer:
alekssr [168]3 years ago
7 0

Answer:

29. A

30.C

31.B

Explanation:

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A functional group on an amino acid that is polar and can become negatively charged: ___________
luda_lava [24]

Answer:

Carboxylic acid.

Explanation:

Amino acids are made up of the amine group, carboxyl group, hydrogen and R hydrophobic chain. Amino acids are the monomers of the protein and they are coded by the particular codons.

Amino acids contains both the amino group and the carboxyl group. The carboxylic group is a polar group and becomes negative charged when the pH of the solution is greater than the pKa value of the amino acids.

Thus, the answer is carboxylic acid.

7 0
3 years ago
What can cause the physical weathering of rock? A. water B. wind C. heat D. all of the above
larisa86 [58]

Answer:

all of the above I did this and got a good grade I hope this helps!

6 0
2 years ago
What movement of the thumb would be most affected by lesion of the median nerve in the cubital fossa
natka813 [3]

Answer:

flexion

Explanation:

The flexion is a movement of the body part that is described the bending of an elbow, or the clenching a hand into a fist, etc. where the angle between any segment of the body and its proximal segment decreases.

In simple words, the flexion is a movement which decreases the angle between two body parts when they are moved.

The flexion occurs in the sagittal plane.

Thus, the movement of a thumb that would be mostly affected by the lesion of median nerve in cubital fossa is the flexion movement.

7 0
3 years ago
A researcher isolates the blood of an individual who is sick. The blood is filtered through a porous material that will prevent
stich3 [128]

The answer would be A. a virus

The question states that the blood was filtered thru a porous material that prevented <u>all cells </u>from passing thru.

All of the options are cells except viruses.

Hope this helps:)

7 0
3 years ago
Read 2 more answers
When you are frightened by something, what part of the brain directs your body to react by making your heart beat faster and inc
Leto [7]
The answer is A. The Cerebellum.
8 0
3 years ago
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