Animal Body Systems

Animals like flatworms, earthworms, and the famous sea anemones have what kind of skeleton?

• muscles

• jointed

• hydrostatic

• flat

A hydrostatic skeleton has

• joints

• a fluid-filled cavity inside the body

• a cavity surrounded by muscles

• ligaments surrounded by tendons

The muscles in a hydrostatic skeleton helps the organism

• eat

• breathe

• move

• drink

The thick hard outer covering that protects and support some animals' body is called

• a hydrostatic skeleton

• a sea anemone

• an exoskeleton

• a shell

An exoskeleton does what for some animals?

• protects

• helps it eat

• supports

• gives fluid

Groups of similar kinds of cells that group together to carry out specific jobs.

• Conscious

• Organs

• Tissues

• Contract

Tags

NGSS.MS-LS1-3

A group of tissues that work together to perform a specific function.

• Conscious

• tissue

• organ

• contract

Which system in the animal body is responsible for transporting nutrients, gases, and waste products?

• Digestive system

• Respiratory system

• Circulatory system

• Nervous system

What is the primary function of the respiratory system in animals?

• To break down food

• To exchange gases

• To circulate blood

• To transmit signals

Which organ is primarily involved in the excretory system of mammals?

• Heart

• Lungs

• Kidneys

• Liver