Q Table Relationship of Down Syndrome
Mother's Age
ce
Table 2: Incidence of Down Syndrome
to 2003
Table what is the independent variable​

it would be c. xylem.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

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

looks like the answer is     c     to me!