Describe the investigations from the readings that are being conducted to learn more about developing and using artificial silk and skin. Why do the researchers think that data from their studies could help improve human health? Cite facts from the texts in your response.

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.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects