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zhenek [66]
3 years ago
9

Someone please help with the two questions throughout the paragraph

Biology
1 answer:
Arisa [49]3 years ago
3 0
How did they find out they could use it to preserve things and why does food spoil
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Will give five stars, heart, and brainliest to first right answer
Sliva [168]

Answer:

The skeletal system provides a frame to

support and protect the body and allows the

body to move.

6 0
2 years ago
HELP PLS NOW LOOK AT MY PROFILE FOR MORE QUESTIONS
eduard

Answer:

Im pretty sure its A :)

Explanation:

deoxyribose

​Nucleotide

A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

ribose

The five-carbon sugar in DNA is called deoxyribose, while in RNA, the sugar is ribose.

4 0
3 years ago
The binding of the neurotransmitter to receptors on the motor end plate causes which of the following to occur?
lutik1710 [3]

The correct answer is: Binding of the neurotransmitter causes chemically gated sodium channels to open in the motor end plate (junctional folds of the sarcolemma) and sodium enters the cell.

Action potential travels through the membrane of the presynaptic cell causing the voltage-gated channels permeable to calcium ions to open. Ca2+ flow through the presynaptic membrane and increase the Ca concentration in the cell which will activate proteins attached to vesicles that contain a neurotransmitter (e.g. acetylcholine). Vesicles fuse with the membrane of the presynaptic cell, thereby release their contents into the synaptic cleft-space between the membranes of the pre- and postsynaptic cells. Neurotransmitter ACh binds to its receptors on the postsynaptic membrane and its binding causes depolarization of the target cell (muscle cell). Depolarization occurs because sodium enters the cell as a result of neurotransmitter receptor binding.

5 0
4 years ago
Certain antibacterial drugs such as trimethoprim and the sulfonamide drugs (e.g., sulfadiazine, sulfamethoxazole) selectively in
d1i1m1o1n [39]

Answer:

Folic acid

Explanation:

Antibacterial drugs helps fight the bacterial infections. these drugs helps release essential amino acids by impairing the production of folic acids in bacterial cells. Bacteria infection may get severe and hazardous if they are leave untreated.

8 0
3 years ago
Please Help I will reward brainliest
GalinKa [24]
The largest chunks of time in the geologic record are called  EONS 
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3 years ago
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