Tropism is a biological phenomenon where an organism, usually a plant, is capable of directed physical movement or growth in response to a specific stimulus.

what is the term for a plant's movement or growth in response to touch or contact?

a) geotropism
b) hydrotropism
c) phototropism
d) thigmotropism

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits