Plants grow in response to stimuli. these stimuli can come from
a. a location in the flower.
b. plants in another field.
c. the environment.
d. a location in the xylem.

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative

What are some natural processes that represent physical and chemical changes?