Light ray 1 strikes the surface, separating air and water as shown below. Which of the following is the refracted ray for ray 1?

Ray 2
Ray 3
Ray 4
None, ray 1 is not refracted

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants,the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

What are the pros and cons of transect sampling?

The diagram shows a chicken embryo and a human embryo