HELP Justify the claim that photosynthetic organisms that live less than 25 feet below the surface of the ocean need allophycocyanin to survive. Provide reasoning that explains this claim

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.

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.