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The answer is D.both B and C .
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Answer:
A-A population of butterflies includes alleles for both yellow and green butterflies. A butterfly predator sees yellow more easily than it does green
Explanation:
Gravity is a force that pulls objects down. If there was no gravity the book would not fall, nor would it move unless it is acted upon by an outside force.
So your answer would be, The book would stay where it is
Answer:
<u> Neuromuscular Junction -</u> It is a chemical synapse formed by the contact between a motor neuron and a muscle fiber.
<u>Function- </u>As the motor neuron are <em>able to transmit the required signals</em> to the muscle fiber, which causes the muscle contraction.
Explanation:
<u>Steps in neuromuscular transmission:</u>
- calcium entry into the presynaptic terminus.
- diffusion of Ach across cleft.
- combination of Ach with post-synaptic receptors and Ach breakdown via esterase.
- opening of Na + /K + channels (cation channels).
- postsynaptic membrane depolarization (EPP).
Location, animals, rains, plants, and it can be cold