The response of a plant to touch is
a. photoperiodism.
b. phototropism.
c. gravitropism.
d. thigmotropism.

Which statement about inheritance is true? o girls get most of their traits from their moms, boys get most of their traits from their dads. o male offspring will always have an x-linked genetic disease if the mom is a carrier o fathers always determine the gender of the offspring in humans. o males never have y chromosomes.

Which molecule is called the "molecule of hereditary?

4. only about 10 percent of the energy in an organism is passed on to the next level of a food chain. look at this food chain: grass → rabbit → hawk what percentage of the energy stored by the grass is passed on to the hawk?