Select all that apply.

atoms are made up of

elements
protons
neutrons
compounds
electrons

The correct answers are options

proton

neutrons

electron

The atom is the basic unit of the chemical compounds. The atoms comprise of a nucleus and the shells. In the shells of the atom, the electrons are present, and participate in the formation of the chemical compounds. In the nucleus of the atom, the neutrons and the protons are present; here the whole mass of the atom is concentrated.

i am going to guess that it is co2.

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.