| Description | Term |
| An important buffer comprising part of baking soda | |
| Flowering every two years, like a beet | |
| Clade containing tapeworms and dogs, but not corals | |
| Small, nocturnal, omnivorous marsupial | |
| Bitter green digestive fluid | |
| Bacterial reproductive mode | |
| A protein might bond to a specific DNA sequences here | |
| Carolus Linnaeus' naming system | |
| The degree of variation of life forms in an area | |
| A thin layer of cells attached to a matrix spread over a surface | |
| | Description | Term |
| Like fireflies, anglerfish, and some jellies | |
| Why DDT harms eagles more than algae | |
| The standing crop in a given area | |
| A class of regions with similar climate, geography, and organisms | |
| Ostriches and man share this type of locomotion | |
| Alternating mania and depression | |
| A member of Class Aves. | |
| Viviparous animals have live _____ | |
| Carrying a charge of 2, like calcium ions | |
| The largest is the giant clam | |
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