Photosynthesis requires energy from the __________.

Through what structures are gases exchanged in plants?

A seed is made up of a protective covering, an embryo, and what?

What transports water and nutrients throughout a plant?

Animals are multicellular and have eukaryotic cells.

A netlike control system in some animals

How do animals that live in the water take in oxygen?

A circulatory system in which blood moves through vessels

What is the most basic process of gas exchange?

An ___________ is an electrical message that sends signals throughout the nervous system.

How are waste products removed from the body?

What flexible tissue covers the ends of bones?

What structure attaches muscles to bones?

Which of the following are voluntary muscles?

What is the outermost layer of skin?

What layer of skin insulates the body and stores energy?

Broken blood vessels in the skin make a ____________.

What large molecule is considered the body's main source of energy?

What process is responsible for breaking down food into smaller particles?

Chewing is an example of what type of digestion?

What tube connects the mouth to the stomach?

What bean-shaped organ filters or removes wastes from the blood?

What process helps food move through the digestive system?

The ureters lead from the kidneys to the _________.

Oxygen is necessary for every cell in your body to be able to process what?

The triangular-shaped area where the vocal cords are found

Specifically, where does gas exchange occur in the lungs?

What muscle helps move air into your lungs?

_______ take blood away from the heart.

What are the four human blood types

Nonvascular plants are

any change in an organism's environment that causes a reaction

What are the three parts of a neuron?

What part of the nervous system receives, processes, stores, and transfers information?

What part of the brain controls sneezing?

What structures in the sensory system detect stimuli?

What is the area in the back of the eye where the photoreceptors are found?

____________ are special receptors on your tongue that help with the sense of taste.

What part of a flower produces pollen?

What type of circulatory system allows blood to flow into open spaces?

What nutrient helps your body absorb vitamins?

Where does most of chemical digestion take place?

Sensory and motor neurons make up the ____________.

Receptors in the skin detect temperature, pressure and pain.

What part of a neuron processes information?

Why do animals move?

A fluid-filled cavity surrounded by muscle tissue

What types of organisms secrete calcium to form their shells?

The basic functioning unit of the nervous system.

What makes up the stamen?

What structures make up the pistil?

What structure contains cellulose?

An internal support system that some animals have

Nutrients that are needed in small amounts for growth

Insects use this structure to exchange gases