SAT Subject Test in Biology

The SAT Subject Test in Biology assesses students' knowledge and understanding of biological concepts and processes.

Basic Concepts

Ecology and Ecosystems

Life Interconnected

Ecology is the study of how living things interact with each other and their environment. Ecosystems include all the living (biotic) and non-living (abiotic) factors in a specific area.

Food Chains and Webs

  • Producers (plants) make their own food.
  • Consumers eat other organisms.
  • Decomposers break down dead material.

Energy flows through food chains, but nutrients cycle in ecosystems.

Human Impact

From pollution to deforestation, human activities can disrupt ecosystems and biodiversity.

Why It Matters

Understanding ecology helps us protect endangered species, manage natural resources, and fight climate change.

Examples

  • Bees pollinate flowers, helping plants reproduce.

  • Deforestation can lead to the loss of animal habitats.

In a Nutshell

Ecology explores the relationships between organisms and their environments.