1. cut up 3 potato pieces. cut the pieces so that they are different sizes. 2. put food coloring in each cup, and then place one potato piece in each cup. 3. after a few minutes, take the potato pieces out and cut them in half. 4. observe how far the food coloring penetrated the potato pieces, and determine how that relates to surface area and volume. in the lab, what do the potato pieces represent? what does the food coloring represent?

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Which organism in this food web is an omnivore?coati

Match the following terms and definitions. the transformation of a larva to an adult; occurs only in animals having great differences in form between the larva and adult pupa 2. type of mammal that lays eggs monotreme nymph the part of certain insect life cycles in which the young animal has no wings or reproductive organs the developmental stage between larva and adult in insects undergoing metamorphosis metamorphosis 5. the male gonad which produces sperm testes