| Term | Definition |
| Biosphere | Lithosphere, hydrosphere, atmosphere |
| symbiosis | any close relationship between species |
| Behavioral Adaptation | an adaptation of an animal in which it is there behavior to change |
| Gergor Mendal | Austrian monk that created the theory if heridity through his work with pea plants |
| Recessive factor | a factor that seems to disappear |
| physical adaptation | how animals are made |
| incomplete dominance | when an intermediate phenotype expressed in offspring |
| dominant factor | a factor that covers up another factor |
| limiting factors | anything that restricts the number of individules in a population |
| carrying capacity | the largest number of individules of one species that an ecyosystem can support over time |
| endocytosis | process by which a cell takes a substance by surronding it with the cell membrane |
| choroplasts | green organelles in the cytoplasm of plant cells (photosynthesis) |
| diploid | a cell that has two kinda of every chromosome |
| egg | sex cells from female reproductive organs |
| cytokenesis | division of cytoplasm |
| interphase | when hereditary material is copied; most of the cells life is spent in this phase |
| osmosis | diffusion of water in and out of cells |
| platelets | clot blood |
| zygote | diploid cells that form in fertialization |
| sperm | diploid sex cells from a male reproductive organ |
| dendrite | neuron structure that recieves messages from neurons |
| humus | decaying matter found in soil |
| biotic factor | living enviromental features |
| abiotic factor | nonliving enviromental features |
| tundra | a cold, dry, treeless region sometimes called a cold desert |
| taiga | a cold forest region domiated by cone-bearing evergreen trees |
| temperate decidious forest | full of decidious trees; has all four seasons |
| grasslands | has a dry season when little or no rain falls |
| kidneys | filter waste out of blood |
| marrow | makes blood cells |
| dialysis | a process when an artifical kidney machine filters blood for waste |
| endocrine system | sends hormones throughout the body |
| biogenesis | the theory that living things come from living things |
| spontaneous generation | the belief that living things come from nonliving things |
| stimulus | something that exicites an organism |
| homeostasis | the ability to remain stable |
| field of view | the area visible through the microscope eyepiece |
| prokaryotic organism | cells that lack membrane bound internal structures |
| eukaryotic organism | cells that contain membrane bound internal structures |
| lysosomes | organelles that contain the digestive chemicals |
| cytoplasm | gelitan like materials inside of cells |
| plant cell | square |
| cell membrane | protective layer around plant cells |
| cell wall | food particles enter and waste leave through this |