Evolution Flashcards
E__________ is the change in a species over a long time.
Evolution
Differences between individuals are called v__________.
Variations
Variation is caused by changes in genes called m__________.
Mutations.
Mutations in s______ c_______ get passed on to offspring.
Sex cells
Species are a__________ to help them survive.
Adapted
Species become adapted by n________ s_________.
Natural selection
A cactus has s________ instead of leaves so it loses less water.
Spines
A polar bear has s______ ears so it loses less heat.
Small
When a group of the same species get separated they can become different species, e.g. Darwin’s f_________.
Finches
When humans choose which features to inherit, it is called s_______ b_______.
Selective breeding