7th grade Science Review

Front

What is a desert environment?

Back

A desert environment is characterized by dry, sandy soil that supports specific plants and animals adapted to low water availability.

Front

What is phototropism?

Back

Phototropism is the growth of a plant toward light, allowing it to maximize photosynthesis.

Front

What is an external stimulus?

Back

An external stimulus is a change in the environment that can affect an organism, such as a loud noise.

Front

What is an internal stimulus?

Back

An internal stimulus is a change within an organism that prompts a response, such as feeling hungry.

Front

What are genes?

Back

Genes are segments of DNA found in chromosomes that carry hereditary information.

Front

What is thigmotropism?

Back

Thigmotropism is the growth or movement of a plant in response to touch.

Front

What is hydrotropism?

Back

Hydrotropism is the growth of plant roots toward moisture.

Front

What is gravitropism?

Back

Gravitropism is the growth of a plant in response to gravity, with roots growing downward and stems growing upward.

Front

What is the role of cacti in a desert environment?

Back

Cacti have adaptations like thick skin and shallow roots to store water and survive in arid conditions.

Front

How do small mammals adapt to desert life?

Back

Small mammals in deserts often burrow to escape heat and conserve moisture.