Body Systems and Cells

The skeletal system and the muscular system work together to do which of the following?

• transport nutrients to the rest of the body

• transport oxygen to the rest of the body

• remove wastes from the body

• allow the body to move from one place to another

One important organ of the circulatory system is the heart. The heart's job is to

• break down food into tiny particles.

• send and receive messages from the brain.

• pump blood to other parts of the body.

• help move bones so that organisms can walk.

Which system carries messages to and from different parts of the body?

• the digestive system

• the circulatory system

• the muscular system

• the nervous system

Each animal has a body system that collects wastes and moves the wastes outside of the animal's body. What is this system?

• circulatory system

• excretory system

• nervous system

• skeletal system

Which body system supports muscles and organs and helps an animal move from one place to another?

• respiratory system

• nervous system

• skeletal system

• excretory system

Control center of cell, contains instructions for everything the cell does.

• Ribosomes

• Nucleus

• Endoplasmic Reticulum

• Mitochondria

Which statement best describes how a multicellular organism survives?

• Every cell carries out the same functions for the survival of the organism

• The cells all have the same structures that allow the organism to survive

• All life processes are performed by each cell for the survival of the organism

• The cells have different functions, and together they are essential for the survival of the organism

Tags

NGSS.MS-LS1-3

What is the relationship between the respiratory system and the circulatory system?

• The respiratory system exchanges oxygen and carbon dioxide with the circulatory system

• The respiratory system exchanges oxygen and carbon monoxide with the circulatory system

• The respiratory system exchanges oxygen and sugar with the circulatory system

• The respiratory system exchanges oxygen and nitrogen with the circulatory system

Which system in the human body includes the heart, blood, arteries, and veins?

• Cardiovasular

• Digestive

• Muscular

• Respiratory

The difference between voluntary and involuntary muscles is that _____.

• Involuntary muscles keep working without you thinking about them

• Voluntary muscles work on their own without you thinking about them

• Involuntary muscles move when you think about them

• Voluntary muscles are never strong