The movement of water molecules from an area of high concentration to an area of low concentration i s called

Why do you think the puppy litter was all dark-haired?

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.