WorksheetsInternal and external structures
Total questions: 10
Worksheet time: 5mins
Elephants are known to clean themselves with water and dust. What external structure helps the elephant clean itself?
tusks
trunk
tail
large ears
Wolves can travel through snow in the winter. Which external structure helps the wolf survive while walking through the snow?
paws
narrow snout
tail
nose
Which of the following internal structures best supports a pig's ability to breathe oxygen?
heart
lungs
small intestine
brain
_______ is are attached to the bones and help the body move?
muscles
esophagus
liver
The _______pumps blood and oxygen through the entire body.
lungs
heart
brain
________ are hard structures that protect the organs
heart
muscles
bones
The _______ controls all of the functions of the body.
lungs
heart
brain
Which one of these is an internal structure?
Skull
Nose
Ear
Eye
All living things are made up of.......
cells
cell tissues
organs
organ systems
What is the basic structural and functional unit of all living things?
atom
cell
molecule
human
