Middle School Life Science

Middle School Life Science explores the fundamental concepts of biology, ecology, and the interactions of living organisms with their environment.

Advanced Topics

Adaptations and Natural Selection

Surviving and Thriving

Animals and plants have special features, called adaptations, that help them survive in their environments. Natural selection is the process where organisms with the best adaptations are more likely to survive and pass on their traits.

Types of Adaptations

  • Structural: Physical features, like a giraffe’s long neck.
  • Behavioral: Things animals do, like birds migrating.
  • Physiological: Internal processes, like a camel storing water.

Why Is This Important?

Over time, adaptations help species survive changes in their environment.

Real-World Example

The shape of a bird’s beak can determine what kind of food it can eat!

Examples

  • Polar bears have thick fur to keep warm in the Arctic.

  • Cacti store water to survive in deserts.

In a Nutshell

Adaptations help living things survive, and natural selection shapes these changes over time.

Key Terms

Adaptation
A trait that helps an organism survive in its environment.
Natural Selection
The process where better-adapted organisms survive and reproduce.