SCIENCE REVIEW

1. The stages a living thing passes through during its life.
4. a desert plant with sharp spines instead of leaves.
8. the parts of a plant or tree that grow under the ground and get water and nutrients from the soil.
9. to make more of the same kind.
11. to carry pollen from one flower or cone to another.
12. any material needed by living things for energy, growth, and repair.

2. the flat, green parts of a plant that are joined to its stem or branches and make food for the plant.
3. the part of a plant that carries water and nutrients from the roots to the leaves.
5. a fine powder produced by flowers and cones.
6. the parts of conifer plant where seeds are made.
7. begin to grow.
10. the surface of Earth.