The first stage in the life cycle series of changes that an organism undergoes) of a butterfly is the egg.

Correct. The nymph is not part of a butterfly's life cycle. The stages are egg, larva, pupa, and adult.

Incorrect. The nymph is not part of a butterfly's life cycle. The stages are egg, larva, pupa, and adult.

The carbon dioxide-oxygen cycle is the movement of carbon dioxide and oxygen gases through an ecosystem.

Correct. During photosynthesis a plant uses sunlight, water, and carbon dioxide to produce oxygen and sugar.

Incorrect. During photosynthesis a plant uses sunlight, water, and carbon dioxide to produce oxygen and sugar.

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This process causes an animal's body to change from its current stage to the next stage of its life cycle.

Correct. Metamorphosis is the process by which an animal's body develops in stages from birth to an adult that looks and acts very differently from its younger form.

Incorrect. Metamorphosis is the process by which an animal's body develops in stages from birth to an adult that looks and acts very differently from its younger form.

Examples of this organism type include a pecan tree or salt grass.

Correct. Producers make their own food.

Incorrect. Producers make their own food.

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Examples of this include plants and animals.

Correct. An organism is a living thing.

Incorrect. An organism is a living thing.

An inherited trait is a characteristic passed from parent to offspring through genes.

Correct. All of these are inherited traits passed from parent to offspring through genes.

Incorrect. All of these are inherited traits passed from parent to offspring through genes.

A decomposer breaks down dead organisms or waste from organisms.

Correct. Some kinds of bacteria are decomposers (organisms that break down dead organisms or waste from).

Incorrect. Some kinds of bacteria are decomposers (organisms that break down dead organisms or waste from).

A learned behavior is an ACTION that an organism is not born knowing how to do.

Correct. Reading is a learned behavior (an action that a person must be taught).

Correct. Reading is a learned behavior (an action that a person must be taught).

The correct answer is defined as a group of organisms of the same species that live in the same area.

Correct. These flying squirrels are the same species and live in the same area, so they make up the park's flying squirrel population.

Incorrect. These flying squirrels are the same species and live in the same area, so they make up the park's flying squirrel population.

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A mollusc interacts with a non-living part of this when it buries itself in the sand.

Correct. An ecosystem is the mix of all living and non-living things, conditions, and interactions in an area.

Incorrect. An ecosystem is the mix of all living and non-living things, conditions, and interactions in an area.

The arrows in a food chain or food web show the direction that energy flows.

Correct. The arrow should be drawn from the mouse to the snake.

Incorrect. The arrow should be drawn from the mouse to the snake.

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A beneficial structure helps the organisms of a species survive in their ecosystem.

Correct. All of the above are beneficial structures and functions.

Incorrect. All of the above are beneficial structures and functions.

A life cycle is a series of changes that an organism undergoes during its life.

Correct. The stages in a grasshopper's life cycle are egg, nymph, and adult.

Incorrect. The stages in a grasshopper's life cycle are egg, nymph, and adult.

A characteristic, such as a polar bear's white fur, can be both an inherited trait and a beneficial structure.

Correct. The snake's energy is NOT given to the opposum.

Incorrect. The snake's energy is NOT given to the opposum.

A maple tree is a different species from an elm tree.

Correct. The trees are NOT members of the same population because they are different species.

Incorrect. The trees are NOT members of the same population because they are different species.

Building dams and dikes is a human-caused change to the ecosystem.

Correct. Building dams and dikes is the human-caused change to the ecosystem, reduced flooding is the first effect (caused by the dams/dikes), and poorer soils is the second effect (caused by the reduced flooding).

Incorrect. Building dams and dikes is the human-caused change to the ecosystem, reduced flooding is the first effect (caused by the dams/dikes), and poorer soils is the second effect (caused by the reduced flooding).