Mr. Ball’s 4th grade

a. oxygen

b. tissues

c. carbon dioxide

d. muscles

A. organs

b. cells

c. blood

d. oxygen

a. cells ---> tissues ---> organs ---> systems

b. tissues ---> organs ---> systems ---> cells

c. organs ---> cells ---> tissues ---> systems

d. systems ---> tissues ---> organs ---> cells

A. muscular system

b. nervous system

c. skeletal system

d. circulatory system

A. ribs

B. elbow

C. knee

D. wrist

A. 306

B. 206

C. 100

D. 602

A. Skeletal muscles cannot pull, they can only push

b. Skeletal muscles cannot push, they can only pull

c. Skeletal muscles can move in every direction

d. Skeletal muscles are involuntary muscles an a person does not have control of them

A. heart

b. lungs

C. brain

d. stomach

A. lung pharynx trachea bronchial tubes nose/mouth

B. nose/mouthpharynx bronchial tubes lungs trachea

C. nose/mouth pharynx trachea bronchial tubes lungs

tracheapharynx nose/mouth lungs bronchial tubes

A. Diaphragm

B. Trachea

C. Heart

D. pharynx

A. circulatory

B. Respiratory

C. Nervous

D. Skeletal

A. Nerves

B. Blood

C. Marrow

D. Tissue

A. Intestines

B. Veins

C. Lungs

D. Arteries

A. Veins

B. Chambers

C. Arteries

D. Vessels

A. 1

B. 3

C. 2

D. 4

A. Nervous

B. Muscular

C. Skeletal

Digestive

A. Blood

B. Intestines

C. Nerves

D. Lungs

A. Brain

B. Spinal Cord

C. Lungs

D. Esophagus

A. Digestive

B. Skeletal

C. Respiratory

D. Nervous

A. Trachea

B. Esophagus

C. Pharynx

D. Spinal Cord

A. Small intestine

B. Large intestine

C. Stomach

D. Liver

A. Liver

B. Esophagus

C. Small intestine

D. Large intestine

A. Large intestine

B. Liver

C. Small intestine

D. Stomach

Cells are the basic units of structure and function of living things. Tissues are groups of cells that are similar in structure and perform the same function. Organs are groups of tissues that work together to perform a complex function. Systems are groups of organs that work together to perform a major function.