ASAP I WILL MARK BRAINLIST. Why does competition happen?A. Different organisms have different needs.B. There are no predators in an ecosystem.C. There are limited resources in an ecosystem.D. Organisms do not need the same resources.

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

*will mark brainliest to the first and correct answer less species diversity results in less a. oxygen b. food c. drinkable water d. all of the above

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.