What is it?
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sperm cell

measuring cylinder
67.91 dm3 = m3
0.06791 m3
Plant's making food process
photosynthesis

Albert Einstein

Stomata

filter funnel

10.02 cm
Organisms which help to break down dead bodies into simpler substances
decomposers

Isaac Newton
Chlorophyll
petri dish
1.75 inch
a scientific guess
hypothesis

Stephen Hawking

Eardrum

0.003071 m3 = ml
3071.0 ml
The largest organ in human body
liver

The Wright Brothers

cheek cells

round-bottom flask

7.74 mm
A tube in plant stem which carries water upwards.
xylem
Nicolaus Copernicus