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Natural Selection
Amplify Natural Selection Unit Vocabulary
| Term | Definition |
|---|---|
| adaptive trait | a trait that makes it more likely that an individual will survive in a specific environment |
| ancestor | a related organism from a previous generation |
| camouflage | a way of hiding by looking the same as the background |
| chromosome | a long piece of DNA that contains many genes |
| distribution | the number of individuals with each trait in a population |
| DNA | a type of molecule that genes and chromosomes are made of |
| environment | everything (living and nonliving) that surrounds and organism |
| feature | a characteristic that all members of a species have |
| gene | an instruction for making a protein molecule |
| generation | a group of individuals born and living at about the same time |
| histogram | a graph that uses bars to show how characteristics or values are distributed within a group |
| inherit | to receive genes from a parent |
| mutation | a random change to a gene that sometimes results in a new trait |
| natural selection | the process by which the distribution of traits in a population changes over many generations |
| non-adaptive trait | a trait that makes it less likely that an individual will survive in a specific environment |
| nymph | a young insect that looks somewhat different from the adult |
| organisms | living things, such as plants, animals, and bacteria |
| population | a group of the same type of organism living in the same area |
| predator | an animal that hunts and kills other animals for food |
| gene version | a specific form of a gene that provides instructions for making a particular protein molecule |
| prey | an animal that is hunted or killed by another animal for food |
| protein molecule | a type of large that performs important functions inside organisms |
| selection pressure | something in the environment that affects an individual's chances of surviving |
| sexual reproduction | the process in which two parents pass on their genes to create offspring |
| species | a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group |
| trait | a specific characteristic of an individual organism |
| variation | any difference in traits between individual organisms |
| body structure | a part of the body's anatomy such as an organ or other component |
| shared structure | something that multiple people or things use or rely on |
Created by:
kmikel