Energy is used by the organisms in each tropical level, which is why only 10% remains to transfer. What is an example of how organisms use energy? a. Movement
B. Cell respiration
C. Heat
D. All the Above

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.