Two species are able to breed with each other and produce offspring, but the offspring quickly die. this is a isolating mechanism. select one:
a. prezygotic
b. biochemical
c. sympatric
d. postzygotic
e. monophyletic

d. Postzygotic

Explanation:

The reproductive isolation is a mechanisms which includes geographical, physical and behavioral barriers which prevent members of two distinct species to mate and produce offsprings.

The postzygotic mechanism is an reproductive isolation mechanism in which the offspring/hybrid produce after the copulation of members of the two distinct species can be inviable or sterile.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: