Which of the following is a measure of the biodiversity of an ecosystem?

This is an important measure of ecosystem health. And although the common measure of biodiversity is the count of species-- what's known as species richness in an area-- other methods may be used. So biodiversity can also be a measure of an area's genetic diversity.

Explanation:

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls