Use a couple of sentences to explain how humans can affect natural selection.

Awic dietitian is meeting with a client who has an infant and a young child. the mother says that the young child is a very picky eater and will only eat crackers and juice. the health worker notices that the child's hair is brittle, his nails tear easily, and the skin inside his lower eyelids is very pale. these are all signs of iron deficiency.

Which direction does the energy flow in this energy pyramid ?

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated