The answer is C. The original population is the dotted line and the population after the selection is the faded blue. The two shell patterns are increasing while the most common was is decreasing.
Answer:
The correct answer is c) action potential
Explanation:
Action potential starts with the opening of the sodium channel in response to the stimulus given to the neuron by neurotransmitter. This opening of sodium ion channel results in the influx of sodium ions in the receptive region of neurons from outside. This is the depolarization step of action potential.
Before this step, the neurons are negatively charged from inside and positively charge outside and this stage it is considered to be resting stage.
As the amount of Na⁺ reaches the threshold value the action potential fires and send the electric signals down to axons.
Therefore action potential occurs because of the influx of Na⁺ ions through chemically gated channels in the receptive region of a neuron.
Answer:
D rotate the ball on its axis
Explanation:
The condition that is characterized by a blowing or clicking sound is heart murmur.
<h3>What is heart murmur?</h3>
Heart murmur is defined as the abnormal sound made by the heart when blood flows through the heart abnormally.
The clinical features of heart murmur include:
- Cough that doesn't go away.
The characteristics of heart murmur is that it has a blowing and clicking sound.
Learn more about heart here:
brainly.com/question/1265266
#SPJ1
Answer:
b
Explanation:
because because it's talking about the five kingdoms and b the correct answer