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SOVA2 [1]
2 years ago
5

Why does the moon revolve around the earth?

Biology
1 answer:
nalin [4]2 years ago
7 0

Answer:

Gravitational forces.

Explanation:

The same reason the earth revolves around the sun, its all thanks to gravity!

-I hope this answers your question!

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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
Point-source pollution comes from a specific location and is easy to trace. true or false ?
Mashcka [7]
The answer is true

The hint is "point-source"
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Which word describes the water stored below Earth’s surface?
SOVA2 [1]

Answer:

Ground water

Explanation:

We gave it a simple name, its just water in the ground.

3 0
3 years ago
Choose the answer that best completes the sentence. ______ zebra mussels can live six or seven years, now it seemed that most we
stiks02 [169]

Answer:

C

Explanation:

A. Since

B. Because

C. Although

D. For example

<em>Zebra mussels have been known to have a lifespan of six or seven years in the past but recent discoveries have shown that their average lifespan now ranges between one to two years. Hence, the correct word to fill in the gap would be 'Although'. </em>

<em>The correct option is C</em>

5 0
2 years ago
Describe two situations in which a healthy aphid population would start to experience negative population growth.
pickupchik [31]

Answer:

Product Quality · Nutrition and Feeding · Health and Care What determines whether an insect population explodes or just moves Eggs may hatch in spring into parthenogenetic females, the beginning of the new line, to see if we can observe any of these phenomena on captive aphids on.

Explanation:

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3 years ago
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