Afrog lays thousands of eggs because many eggs die. this behavior is an example of a)competition b)overproduction c)variation in a population d)survival of the fittist

How do you transfer mrna into codons ? i'm so confused : (

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.