Midterm Review

Front

What is responding to the environment?

Back

Responding to the environment refers to how living organisms react to changes in their surroundings, such as grabbing an umbrella when it rains.

Front

What is a plant cell?

Back

A plant cell is a type of cell that is found in plants, characterized by a rigid cell wall, chloroplasts for photosynthesis, and a large central vacuole.

Front

What are the main components of the circulatory system?

Back

The main components of the circulatory system are the heart, blood, and blood vessels.

Front

What is a constant in an experiment?

Back

A constant in an experiment refers to all factors that are kept the same in both the control and experimental groups to ensure a fair test.

Front

Which body systems control reflex actions?

Back

Reflex actions are controlled by the muscular and nervous systems.

Front

What is the function of the heart?

Back

The heart pumps blood throughout the body, supplying oxygen and nutrients to tissues and removing waste products.

Front

What is the role of blood vessels?

Back

Blood vessels are tubes that carry blood throughout the body; they include arteries, veins, and capillaries.

Front

What is the difference between a plant cell and an animal cell?

Back

Plant cells have a cell wall and chloroplasts, while animal cells do not have these structures.

Front

What is a reflex action?

Back

A reflex action is an automatic response to a stimulus that occurs without conscious thought, such as pulling your hand away from a hot surface.

Front

What is the purpose of a control group in an experiment?

Back

The control group serves as a standard for comparison, allowing scientists to see the effect of the variable being tested.