What is the difference between the biological term fitness and the common meaning of the common meaning of the world?

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

Why is it incorrect to say that mitochondria function only as energy factories with cell