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How the eye works
How the eye works
Gap-fill exercise
Fill in all the gaps, then press "Check" to check your answers.
The
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
controls the amount of
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
that enters the eye. The
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
focuses the light onto the
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
. The lens does this by changing
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
. There are light sensitive
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
on the retina. The
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
can detect different colours light but only work in
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
light. The
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
only allow us to see in
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
but work better in
bright
cells
cones
dim
iris
lens
light
monochrome
retina
rods
shape
light.
Check
OK