Which of the following does disease affect?
an organism's structure
an organism's function
an organism's age
both a and b

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

What do you need to use in order to work as an environmental scientist? you need to use the scientific method and__ in order to work as an environmental scientist.

Sperm are ejaculated from the corpora cavernosa of the penis. true or false