The signal will start from the eyes. The message is carried by sensory neurons to the spinal cord. There, the "impulse" will transfer to motor neurons which will carry it to the brain. So in short:
Sensory neurons --> spinal cord --> motor neurons --> brain
Answer:
b. by increasing the heart rate
c. by increasing the respiratory rate
Explanation:
Increased activity of skeletal muscles would require an increased supply of oxygen to these cells to sustain the muscle contraction. Muscle cells perform aerobic cellular respiration in the presence of oxygen and produce ATP molecules to be used during muscle contraction. Therefore, there is an increase in heart rate to pump sufficient blood to the skeletal muscles which in turn ensures enough supply of oxygen. Also, there will be an increase in the respiration rate to inhale the required oxygen.
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus<span>, mitochondria, </span>endoplasmic reticulum<span>, </span>golgi<span> apparatus, lysosomes, and peroxisomes.</span>
They can have As geneticists both can be either (bb) because most brown-eyed people have homozygous for the relevant.
Glucagon works to counterbalance the action of insulin . About four to six hours after you eat , the glucose Levin your blood decrease, triggering your pancreas to produce glucagon this hormone signal your liver and muscle cells to change the storage glycogen back into glucose.
