How do echinoderms get their energy

chinoderms do not actively regulate their body temperature. Instead they live in environments where the temperature of the environment is at a temperature that they can survive in. (1) Echinodermsare considered cold-"blooded" organisms, meaning that the temperature of their bodies corresponds to the temperature of the environment

Explanation:

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.

the dark variety, as they are not visible on the dark tree barks

explanation: