Evolution Pre-Test

Front

What is competition in ecology?

Back

An ecological relationship in which two or more organisms depend on the same limited resource.

Front

Where do adaptations come from?

Back

Adaptations come from mutations that give an organism an advantage in its environment and genetic recombination during meiosis.

Front

What is an adaptation?

Back

An inherited trait that helps an organism survive and reproduce in its environment.

Front

Which organisms are most likely to survive?

Back

The best adapted organisms are most likely to survive.

Front

What are homologous structures?

Back

Similar structures that related species have inherited from a common ancestor.

Front

What is natural selection?

Back

The process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

Front

What is a vestigial structure?

Back

A structure that has lost most or all of its original function through the course of evolution.

Front

What is the role of mutations in evolution?

Back

Mutations introduce new genetic variations that can lead to adaptations.

Front

What is genetic recombination?

Back

The process during meiosis where genetic material is shuffled to create new combinations of genes.

Front

What is the difference between analogous and homologous structures?

Back

Analogous structures serve similar functions but do not share a common ancestor, while homologous structures share a common ancestor but may serve different functions.