1) in biology, a trait that arose in an ancestor and is passed along to its descendents is referred to as
a. derived character
b. taxonomic group
c. molecular clock
d. physical similarity
2)which of the following idea is supported by darwins observation of locals variation amoung tortoises in the galapogos island>
a. artificial selection
b. adaptation
c. acquired characteristics
d. tendency towards perfection

answer: that would be cheating

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.