They both use the same muscle tissue known as the heart muscle which it is powered by.
4, 5 I think I’m not too sure
Answer:
<em>The correct option is d) once the electrical impulse reaches a certain level of intensity (its threshold), it fires and moves all the way down the axon without losing any intensity.</em>
Explanation:
In the field of biology, the all-or-nothing law can be described as a principle which focuses on the strength with which a nerve or muscle fibre responds to a particular stimulus, this strength being independent of the strength of the stimulus. The functioning of the impulse is just like the trigger of a gun. The more the force of a stimulus, the more will be the intensity of the nerve impulse.
Answer: A and C - When the moon is in alignment with the Earth and Sun, then the tides will be strongest.
Answer:
B
Explanation:
After a landslide, only bare rock is
left. What type of succession is this?
A. final
B. primary
C. aquatic
its b
