What would the CONTROL GROUP be in an experiment testing how different
fertilizers affect plant growth?
A. the growth of the plants
B. the fertilizers
C. multiple groups with the same plant and fertilizer
D. a plant without fertilizers

there really is life in the deepest part

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

you know they are heterozygous for a trait because they have it as jj or jj.