How does filtration occur during the formation of urine

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?