| A | B |
|---|
| Algae | protists that perform photosynthesis |
| Antibody | a protein of the immune system |
| Aorta | enormous artery extending from the heart |
| Artery | blood vessel that carries blood away from the heart |
| Atmosphere | layer of gases that surround Earth |
| Biodegradable | capable of being broken down by living organisms |
| Biology | the study of life |
| Biotic | pertaining to living things |
| Carnivore | eats other animals |
| Central Nervous System | brain and spine |
| Clone | exact copy |
| Dermis | thick layer of skin |
| Genetics | study of physical inheritance |
| Genotype | genetic makeup |
| Herbivore | eats plants |
| Kinetic energy | energy in motion |
| Olfaction | sense of smell |
| Omnivore | eats both plants and animal |
| Polarity | difference in electrical charge |
| Vein | blood vessel that carries blood to the heart |
