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10 questions
-----is the smallest building units of living things
tissue
cells
organ
all ---------- things made up of cells.
non living
living
both
cells group together to form
organs
tissues
organ system
which one is an example of muscle tissue?
nerves
cardiac muscle
spinal cord
which organ pumps blood to all parts of the body?
kidney
lungs
heart
what is the control centre of the human body?
heart
brain
lungs
how many bones are there in the human body?
204
205
206
what is the longest and the strongest bone in the human body?
femur
spine
stirrup
which organs are protected by ribcage?
heart
lungs
both
which joints can move in all directions?
hinge
ball and socket
none of these
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