30 terms

Natural Selection

STUDY
PLAY
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
cause
an event or process that leads to a result or change
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
effect
a result or change that happens because of an event or process
environment
everything (living and nonliving) that surrounds an 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
offspring
an organism produced as a result of reproduction
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
prediction
an idea about what might happen that is based on what you already know
prey
an animal that is hunted or killed by another animal for food
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
survive
to stay alive
trait
a specific characteristic of an individual organism
variation
any difference in traits between individual organisms
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