Grade 7 Science Entrance Exam Reviewer

Which of the following is a biotic factor in an ecosystem

• Soil

• Water

• Plants

• Sunlight

Which of the following best describes a producer in a food chain?

• An animal that eats other animals

• A plant that gets energy from the sun

• An organism that breaks down dead organism

• An organism that makes their own food using sunlight

What is the primary source of energy in most food chains?

• Water

• Soil

• Sunlight

• Air

Which of the following is an example of a decomposer in an ecosystem?

• Lion

• Snake

• Fungi

• Deer

What role do herbivores play in a food chain?

• They eat other animals

• They break down dead organisms

• They make their own food using sunlight

• They consume plants

What is the primary role of a consumer in a food chain?

• To produce energy from sunlight

• To break down dead organisms

• To consume other organisms for energy

• To provide nutrients to plants

Which of the following is an example of a predator in an ecosystem?

• Rabbit

• Wolf

• Butterfly

• Tree

How do scavengers contribute to an ecosystem?

• By producing oxygen

• By breaking down dead organisms

• By providing shelter to other animals

• By absorbing sunlight

How do producers contribute to an ecosystem?

• By consuming other organisms

• By breaking down dead organisms

• By providing energy to other organisms

• By absorbing nutrients from the soil

Which of the following is an example of a primary consumer in a food chain?

• Deer

• Wolf

• Eagle

• Snake