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Roman55 [17]
2 years ago
12

Which changing external condition triggers the salivary glands?

Biology
1 answer:
gregori [183]2 years ago
8 0
<span>The correct answer is B. Lack of water. When there's no water and you start to dehydrate, your salivary glands start working extra hard because your mouth can't be dry and the salivary glands produce saliva to keep the mouth and the throat dry. If your throat and mouth are dry you can't even swallow.</span>
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T point is the movement of WATER from an area of high concentration to an area of low concentration. *
vagabundo [1.1K]
A. Osmosis is the answer for this question
5 0
3 years ago
Place the following events that occur at the vertebrate neuromuscular junction in the correct order. I Depolarization of the mus
meriva

Answer:

Generation of an action potential in the neuron.

Stimulation of Ca2+ entry into the neuron

Release of acetylcholine into the synapse

Depolarization of the muscle fiber membrane

Explanation:

The following events takes place in the vertebrate neuromuscular junction

a) Nerve Action Potential - Action potential reaches the axon terminal

b) Entry of calcium ion - The calcium ion reaches the axon terminal and enter into the presynaptic terminus after which the Synaptic vesicles fuse with the membrane of axon terminal

c) Releasing of Arch Quanta - Acetylcholine is released into synaptic cleft which then  binds to the receptor sites on motor end plate

d) The  Na+/K+ channels opens and Motor end plate becomes depolarized.

3 0
2 years ago
What type of soil is ideal for gardens and found in north-central Pennsylvania?
ladessa [460]

Answer:

Sandy loam

Explanation:

sandy loam is better than silt loam because sandy loam has smaller particles than silt loam for easy drainage.

7 0
3 years ago
Regions of dna that read the same forward as backward are called ______ and include the testis-specific genes on the y chromosom
deff fn [24]
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5 0
3 years ago
Skeletal muscle fibers contain striations. what is the best description of a striation?
egoroff_w [7]
Answer: alternating dark and light bandsof protein filaments
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3 years ago
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