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aivan3 [116]
3 years ago
8

Please help i need an answer asap :(

Biology
1 answer:
N76 [4]3 years ago
5 0

Answer:

the third one

Explanation:

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A neuromuscular junction is a junction between a_________ and a ___________. A neuromuscular junction is a junction between a___
garri49 [273]

Answer:

myofibril bulbous end of axon and skeletal muscles fibres.

Explanation:o

It represents the  chemical synapse  of the axon bulbous ends  of the motor neuron ( motor end plate) and the skeletal Muscle fibres.

The influx of calcium ions into the bulbous ends leads to the fusion  and empty of the vesicles containing neurotransmitters into the synaptic cleft.

The Neurotransmitters binds to the receptors on the muscles membrane to allow the transmission of action potential ( PSIP or  PSEP)across the synaptic gap  to the muscles fibers  to initiate  their  contraction or relaxation.

5 0
3 years ago
Why does lack of oxygen result in the halt of atp synthesis??
dsp73
Because the chain will begin to shut down and will no longer pump [H+] (hydrogen ions) across the membrane; thus, the proton gradient can not be maintained.

:) I hope this answers your question!
6 0
3 years ago
What are check points and why are they important in the cell cycle
pentagon [3]
Hmm this is a rough explanations but because to be sure cells are made properly and not misfunctioning or going Rouge.

Cancer cells is an example of this, a cell goes rouge and starts doing it's function on it's own but outside of it's brother cells function slightly different turning into a growth or etc. The body thinks it is normal during the check body it's composed of the dna that passes this check.

viruses and other things don't pass this check and things like white blood cella come shut it down.

that's why doctors poison the area they find the cancer. to send white blood cells there to shut the area down not passing the check.
8 0
3 years ago
3. The diagram to the right shows a flower.
MArishka [77]

Answer:

A. parts A and B

Explanation:

A is the filament and B is the anther

8 0
3 years ago
Development of offspring takes place inside which female reproductive organ?
zhuklara [117]
The development of offspring takes place inside the UTERUS 
6 0
3 years ago
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