Zoology - Chemical Coordination and Integration Question with Solution | TestHub

$\mathrm{A}.$Epinephrine - These increase alertness, pupillary dilation, piloerection (raising of hairs), sweating etc. Both hormones increase the heartbeat, strength of heart contraction and the rate of respiration.

$\mathrm{B}.$Testosterone - It is responsible for the muscular growth, aggressiveness, development of facial and axillary hair, low pitch of voice, etc.

$\mathrm{C}.$Glucagon:
$1.$Stimulating glycogenolysis.
$2.$Stimulating the process of gluconeogenesis.
$3.$Reducing the cellular glucose uptake and utilisation.

$\mathrm{D}.$Atrial natriuretic factor - ANF is a peptide hormone secreted from the atrial wall. Increase in blood pressure$\to$Release of ANF$\to$Dilation of the blood vessels$\to$Decrease in blood pressure.