This a picture of a modified stem off a plant.

This is an example of exoskeleton. An exoskeleton is a hard, protective structure that provides support for an organism. This could also be found in lobsters, crabs, snails, and clams.

A frog is an example of ectotherm. Ectotherm is when any cold-blooded animal depends on external sources such as the sunlight for regulation of body temperature. This can be found in fishes, reptiles, and invertabrates.

This is a picture of predation. It was actually the before picture when the lizard noticed an insect flying by. It began to run off and I couldn’t keep up and find it.

This is an example of a hermphrodite. The earthworm has both the male and female organs.