The sex of mammals is determined by:
a. the autosomes they receive.
b. the type of sex chromosomes received.
c. the number of recessive chromosomes received.
d. none

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.