Blood needs to flow faster around the body in order to supply the muscles with oxygen for respiration
I don't think so much for all your friends and family
Meiosis produce cells with half the chromosomes, because a<span> gamete needs only half the number of chromosomes, because two gametes join together. </span>
Answer:
b. adrenal medulla
Explanation:
The gland responsible for the "fight or flight" response is the adrenal medulla. The nervous system sends out an impulse to smooth muscles and glands that tell the adrenal medulla to release adrenaline and noradrenaline into the bloodstream. Once they are released into the bloodstream and circulating through the body, it brings changes such as your breathing getting quicker and quicker and your heart pounding more and more.
Answer: d. none of the other answers
Explanation:
Enzymes that turn chemical energy into mechanical work are molecular motors.
There are three main components of cytoskeleton including microtubules, actin filaments and Intermediate filaments. Only actin filaments and microtubules carry the motor-driven transport on the cytoskeleton.
The most important feature of intermediate filaments is to provide the plasma membrane with mechanical support where it comes into contact with the extracellular matrix and other cells.
Unlike microtubules and microfilament , intermediate filaments are not involved in motility of the cells, hence do not associat with molecular motors.
Hence, the correct option is d.
