organ systems 3

Which organ system transports oxygen throughout an organism?

• Endocrine system

• Respiratory System

• Excretory System

• Circulatory System

The integumentary system is like which organelle?

• cell membrane

• mitochondria

• nucleus

• cell wall

The nervous system is like

• the mitochondrion.

• the nucleus.

• chloroplast.

• the cell membrane.

Which body system secretes hormones through glands to maintain equilibrium?

• endocrine

• nervous

• digestive

• cirulatory

Which two body system work together to regulate your bodies processes by secreting hormones through glands and transporting them by the blood.

• circulatory and excretory

• endocrine and circulatory

• excretory and endocrine

• respiratory and excretory

The pharynx is an organ that is found in the back of the throat of humans. Most of the time it is open to allow air to flow in and out of the lungs. When a person swallows, muscles will push the pharynx closed. What is the function of the pharynx?

• to prevent food and water from entering the lungs

• prevent air from entering the stomach

• separate oxygen from carbon dioxide before entering the lungs

• absorb nutrients from food before it reaches the stomach

The main function of the respiratory system is to

• fight disease

• remove waste

• exchange oxygen and carbon dioxide with the environment

• circulate oxygen through the body

All cells come from

• the floor.

• the nucleus.

• previously existing cells.

• the earth.

Which is true about cell theory?

• cells can all reproduce by spontaneous generation

• every cell can undergo photosynthesis

• cells are the basic unit of structure for each organism

• cells are made up of the same type of atom

What do all living organisms have in common?

• they are all made up by cells

• they all have eukaryotic cells

• they all have prokaryotic cells

• they are all made up of one type of atom