Fast
which of the following describes how dna provides evidence to support that life changes over time?

a) some animals exhibit similar stages of embryonic development.

b) some animals exhibit structures that are no longer used for any purpose.

c) some animals exhibit similar biological proteins.

d) some animals exhibit similar structures, possibly due to a common ancestor.

bc blah

explanation:

bc blah

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.