1. Lesson 1: Living Things and the Environment
Populations and Ecosystems packet

2. Three Species of Lemurs
Gray Lemur Golden Brown Goodman’s Lemur Mouse Lemur

3. What’s wrong with this picture?

4. Abiotic Factors in a Prairie Habitat
Sunlight
Because sunlight is needed for plants to make their own food, it is an important abiotic factor for most living things.
Abiotic Factors in a Prairie Habitat
Soil
Soil consists of varying amounts of rock fragments, nutrients, air, water, and the decaying remains of living things. The soil in an area influences the kinds of plants and animals that can live and grow there.
Temperature
The temperatures that are typical in an area determine the types of organisms that can live there.
Oxygen
Most living things require oxygen to carry out their life processes. Organisms on land obtain oxygen from the air. Aquatic organisms obtain oxygen that is dissolved in the water around them.
Water
All living things require water to carry out their life processes. Plants and algae need water along with sunlight and carbon dioxide to make their own food. Other living things depend on plants and algae for food.