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5 questions
Organs combine to form __________.
an organism
tissues
cells
an organ system
The muscular system and the skeletal system work together so the body can __________.
get oxygen
pump blood
digest food
move
If an organism has more specialized cells, its cells__________.
do not have any function
are all the same
can survive on their own
have their own function
How do cells know how to develop within a multicellular organism?
They follow a pattern that comes from outside the cell.
They learn as they go along.
They all develop in exactly the same way.
They receive instructions in their DNA.
What feature do plants have that provide structure and form?
Plants have an external covering that keeps them upright.
Plants have an exoskeleton, like insects.
Plants have rigid tubes made of cellulose.
Plants have an internal skeleton of bones.
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