What is an invasive species? ~choose all that apply~ A.)An organism that came from somewhere else and causes harm to the ecosystem.
B.)An organism that overpopulates and eats all the food.
C.)An organism that came from somewhere else.
D.)An organism that is native to the ecosystem and out-competes other organisms.

Competition occurs between species when

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d