In which environment would you find dolphins? a) abyssal b) sub-littoral c) rocky shore d) pelagic

The correct answer is option D, Pelagic.

The pelagic zone comprises the water column of the open ocean and can be further differentiated into areas by depth. In deep water, the pelagic zone at certain occasions is known as the open-ocean zone and can be contrasted with water, which is close to the continental shelf of the coast.

Or it can be said, that coastal water not near the bottom is still regarded to be in the pelagic zone. The tunas, sharks, and big marine mammals, like dolphins and whales travel in these waters.

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.