Why are skeletal and cardiac muscles striated?

Natural selection acts on populations through a specific trait. which statement must be true about that trait? question 6 options: the trait is passed on genetically to the next generation. the trait has little impact on survival. the trait is the same for all organisms. the trait is resistant to mutations.

Why is it important that fibrin is insoluble in water?

Apart of an ecosystem that can restrict the growth of a population is referred to as