Unit 1: Review

5. is a single-celled organism that lacks a nucleus, and other membrane-bound organelles.
7. composed of more than one cell, with groups of cells differentiating to take on specialized functions.
8. data is numerical information that can be measured or counted.
9. is an organism that consumes other organisms in a food chain.
10. is a living organism that shapes its environment.
12. is the chemical reaction in the body's cells that change food into energy.
13. is the state of steady internal, physical, and chemical conditions maintained by living systems.
14. is the process in which a stem cell alters from one type to a differentiated one.

1. is a non-living part of an ecosystem that shapes its environment.
2. is made up of only one cell that carries out all of the functions needed by the organism.
3. occurs when the sperm from the male parent fertilizes an egg from the female parent, producing an offspring that is genetically different from both parents.
4. Denoting or expressible as quantity, relating to the proportionate quantities or to the amount of the constituents of a compound.
6. are organisms whose cells have a nucleus enclosed within a nuclear envelope.
11. involves a single parent.
15. is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.