Tissue cultures (samples of cancer cells) are taken from cancer patients, and the cells are then grown in a laboratory. what is the purpose of growing cancer cells in a laboratory?

The answer is to test medicinal treatments before giving them to patients .

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.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.