Answer:
Option A, by having a constant supply of blood
Explanation:
Blood that flows to the muscles bring oxygen from the atmosphere to the contracting muscles where it gets consumed. During large muscle exercise, two physiological needs arise – a) high and prolonged muscle blood flow and b) regulation of blood pressure so that there is adequate perfusion of pressure to all organs. In order to meet both the requirements, the blood flow increases so that the vasoligating muscles do not outstrip the cardiac output.
Hence, option A is correct
Answer:
C using gas for heat
Explanation:
only thing that uses fossil fuels
A frog is an amphibian so it survive both on land and water
Hope this helps:)
Answer:
Dna i think im not sure if it is right?
Explanation:
It will be 1,2,4
You can’t see x-rays with machine
