What is the function of ecdysone in molting: (a) initiates the process in response to stretch receptors, (b) regulates the process of shedding the old exoskeleton (ecdysis), (c) causes hardening of the new exoskeleton, (d) directs the epidermis to secrete a new exoskeleton, (e) controls the type of exoskeleton that is produced

The correct answer is B and D

Explanation:

Ecdysis is the molting of the cuticle in many invertebrates of the clade ecdysozoa since the cuticle of this animals typically forms a largely inelastic exoskeleton. it is shed during growth and a new larger covering is formed. the remnant of the old empty exoskeleton are called exuviae.

After molting an arthropod is described as teneral, a callow it is fresh, pale and soft bodied. within one or two hours the cuticle hardens and darkens following a tanning process analogous to the production of leather.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.