Answer:
Muscles contract rapidly to produce heat on a cold day.
Explanation:
Answer: Kidney
Explanation: The Kidneys produce the hormone in response to cellular hypoxia due to loss of blood.
When a neuron is at rest, ................................. of POTASSIUM IONS inside the cell relative to the outside.
When a neuron is resting, the concentration of sodium ions outside the cell is very high compare to the inside of the cell while the inside of the cell has high concentration of potassium compares to outside of the cell.
I believe the answer is 172,800,000,000 per day (24 hours)
How I Got That Answer:
I calculated 2 million times 60
=120000000 per minute
Then I calculated that times 60 again
=7200000000 per hour
Then I calculated that times 24
=172800000000 per day
It is twisted to create a greater surface area for digesting and to increase the nutrient absorption.
