Ecosystem Lesson 1 & 2 Review

Front

What is an organism?

Back

An organism is a single living thing, such as a plant, animal, or bacterium. For example, a single zebra is an organism.

Front

What is a population?

Back

A population is a group of individuals of the same species that live in a specific area. For example, all the bears in a forest make up a population.

Front

What is a community in an ecosystem?

Back

A community is the largest group of organisms that live together in a specific area and interact with each other. It includes all the different populations in that area.

Front

What are the characteristics of life?

Back

The characteristics of life include: 1) growth, 2) use of energy, 3) elimination of waste, 4) reproduction, and 5) response to the environment.

Front

Which characteristic of life is NOT essential?

Back

Breathing is not a characteristic of life that all organisms must do. Some organisms do not breathe in the way we think.

Front

What is a habitat?

Back

A habitat is the natural environment where an organism lives. It provides food, shelter, and mates for reproduction.

Front

What is a niche?

Back

A niche is the role or function of an organism within its ecosystem, including how it gets its food and interacts with other organisms.

Front

What is a biome?

Back

A biome is a large area characterized by its climate, soil, plants, and animals. Examples include deserts, forests, and grasslands.

Front

What is the difference between a population and a community?

Back

A population consists of individuals of the same species, while a community includes all the different populations of various species living together.

Front

What does it mean to respond to the environment?

Back

To respond to the environment means to react to changes in surroundings, such as moving towards food or away from danger.