Structures and Functions of Living Organisms NC Final 7th Grade

Which characteristic do volvox and euglena share?

• They both have eye spots.

• They both use flagella to move.

• They both use eye spots to move.

Which two organisms contain chloroplasts and eyespots?

• amoeba and paramecium

• paramecium and volvox

• volvox and euglena

The illustration below are a euglena, a paramecium, and an amoeba. How do these organisms compare?

• They use different structures for movement.

• They use different structures to control cell activity.

• They all make their own food by photosynthesis.

What is the basic unit of life?

• organ

• cell

• organelle

Which of the following is organized from simplest to most complex?

• cells tissues organs organ systems the organism

• tissues cells organ systems organs the organism

• the organism organ organ systems tissues cells

How are tissues and organs related?

• Groups of organs form cells, which work together to make up a single tissue.

• Groups of organs work together to make up a single tissue.

• Groups of tissues work together to make up a single organ.

Which is a function of the respiratory system?

• to provide the body with carbon dioxide, which reacts with food to produce energy

• to provide the body with oxygen, which react with food to produce energy

• to provide the cells with glucose, which is used as a source of energy

How do the respiratory and circulatory systems work together?

• The circulatory system takes in oxygen, while the respiratory system delivers oxygen to the cells.

• The respiratory system takes in carbon dioxide, while the circulatory system delivers carbon dioxide to the cells.

• The respiratory system takes in oxygen, while the circulatory system delivers oxygen to the cells.

How do the lungs function within the excretory system?

• the lungs absorb carbon dioxide from the air

• the lungs exchange oxygen and carbon monoxide

• the lungs exchange oxygen and carbon dioxide and release waste products in cells

Which system breaks down food into nutrients that can be absorbed into the body?

• excretory

• digestive

• lymphatic