1. What does an organism's environment include?
- A. Only the food that the organism eats.
- B. Just the air and the water available.
- C. All living and nonliving things in an area.
- D. Only the other animals of the same species that live nearby.
2. A squirrel lives in a forest with many oak trees. Which of the following does this environment provide that is essential for the squirrel's survival?
- A. Large rivers for swimming.
- B. Acorns and nuts for food.
- C. Open fields with no trees.
- D. Cold, snowy weather all year.
3. What is the main reason an organism can survive in a particular environment?
- A. The organism has many friends there.
- B. The environment provides for its needs.
- C. The environment is very large.
- D. The organism thinks the place is beautiful.
4. Which of the following best describes the relationship between an organism and its environment?
- A. An organism can change its needs to fit any environment it finds.
- B. The environment depends on the organism to provide it with food and water.
- C. An organism must find an environment that has the specific things it needs to live.
- D. The environment and the organism are completely separate and do not affect each other.
5. A cactus is a plant that stores water and has sharp spines. In which type of environment would a cactus most likely survive well?
- A. A wet, rainy jungle with lots of tall trees and shade.
- B. A cold, icy region where the ground is usually frozen.
- C. A hot, dry desert with very little rainfall.
- D. The bottom of a deep lake with fresh water.
6. In a forest environment, which of the following is an example of an organism using a nonliving resource?
- A. A squirrel gathering acorns from an oak tree.
- B. A bird building a nest on a tree branch.
- C. A deer drinking water from a stream.
- D. A wolf hunting a rabbit for food.
7. A forest contains squirrels, oak trees, rocks, and a stream. Which of these are considered the nonliving parts of this environment?
- A. Squirrels and oak trees
- B. Rocks and the stream
- C. Oak trees and rocks
- D. Squirrels and the stream
8. Which of the following best describes an environment?
- A. Only the animals and plants in a specific area.
- B. The water, air, and soil found in a location.
- C. All the living and nonliving things in a place and their connections to each other.
- D. The weather patterns observed in a region over many years.
9. A pond is considered a system because its parts are all connected. Which statement best explains this connection?
- A. The pond contains water, which is a nonliving resource.
- B. Many different types of fish live in the pond.
- C. Every part, like the fish, plants, water, and sunlight, can affect every other part.
- D. It is a place where many organisms can find a home.
10. If a long drought caused many plants in an area to die, what would be a likely effect on the environment's system?
- A. The amount of sunlight would decrease.
- B. The animals that eat those plants would have less food.
- C. The soil would become much healthier.
- D. The number of predators would immediately increase.