What leads to a star's death? Comet impacts destroy the star
Nuclear fusion in the core stops and gravity collapse
stars never die, they just get smaller
The magnetic field of the star weakens causing the
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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.

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

Cells are adapted to preform specific functions. which of the following terms refers to this capability?