| A | B |
| Allele | One member of a pair (or any of the series) of genes occupying a specific spot on a chromosome (called locus) that controls the same trait.,  |
| Biomass | Plant materials and animal waste used as fuel,  |
| Cellular Respiration | The term cellular respiration refers to the biochemical pathway by which cells release energy from the chemical bonds of food molecules and provide that energy for the essential processes of life.,  |
| Consumers | An organism, usually an animal, that feeds on plants or other animals,  |
| Dormancy | A state in which an organism is inactive while it awaits more favorable conditions in its environment.,  |
| Evolution | Generally refers to any process of change over time,  |
| Gland | An organ that makes secrets (releases chemicals called hormones.,  |
| Hormone | Is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism.,  |
| Liver | An organ that produces urea from excess amino acids, removes harmful substances from the blood, and secretes bile, a digestive juice.,  |
| Molecule | The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more.,  |
| Nucleotide | One of several organic monomers of nucleic acids.,  |
| Photosynthesis | The process a plant uses to combine sunlight, water, and carbon dioxide to produce oxygen and sugar (energy).,  |
| Reproductive Parts of a Flower | Reproductive organ of angiosperm plants especially one having showy or colorful parts. Parts of the flower include petals, sepals, one or more carpels (the female reproductive organs), and stamens (the male reproductive organs).,  |
| Sperm Ducts | Tubes through which sperm cells pass upon leaving the testes.,  |
| Translation | The process by which a messenger RNA molecule specifies the linear sequence of amino acids on a ribosome for protein synthesis.,  |