Florida citrus farmer planted 4 groves of equal size that have the same amount of sunlight. Each of the groves was exposed to a different agent that caused many of the trees to die. Which of the 4 agents is a density-independent limiting factor? A. soil parasites B. bacterial pathogen C. flooding from a broken pipe D. attack by a group of herbivores

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.