Why would the molecule ch5 not be possible?
select one:
a. carbon and hydrogen do not form chemical bonds.
b. carbon can only bond with up to four other atoms.
c. hydrogen only bonds with one other atom.
d. there is no oxygen present in the molecule.

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.

What is a dendrite and what does it do?