Can someone please help me with this?

Todd : will be circled

Because he had said the correct statement

cell is the basic structural and functional unit of life..

group of cells make tissues, group of tissue make organs and group of organs make organs system

Todd. cells are what humans are made of and make up tissues make up organs, organs make the body, and then the body system is you. Cells turn on  genes that are specific for the tissue and turn off genes that are not responsible for that tissue.

biology is the study of life. it is the study of living organism.

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.