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7th Grade Unit 2.2 Evolution of Living Things

Horizontales
An inherited trait that gives an organism an advantage in its particular environment.
The loss of all of the members of a species.
Environmental factors that limit population size. Competition, predators, disease, and catastrophic events are 4 types of these.
An early form of an organism from which later forms descend.
Conditions that affect survival.
Events throughout history when huge numbers of species have become extinct in a short period of time.
The movement of individuals out of a population.
Verticales
Structures that were fully developed in ancestral organisms but are reduced and unused in later species.
A group of individuals of the same species that live in a particular environment or area.
In science, this is an explanation of natural phenomena based on a wide range of scientific evidence.
Differences in DNA in a species.
The movement of individuals into a population.
In biology, this refers to the process through which species change over time.
The evolution of a new species from an existing one.