Definitions
letting only some light pass through.
a. transparent b. translucent c. reflection
a. transparent
A ________ lens is thinner in the middle and always makes objects look smaller.
a. concave b. convex c. translucent d. opaque
a. concave
The retina is the structure is at the back of the human eye where light through the lens is focused?
True
Why do owls have larger eyes?
To help them see at night. They gather as much light as possible so they can see.
completely blocking light from passing through
Opaque
Which structure is at the back of the human eye where light through the lens is focused?
a. cornea b. pupil c. retina d. rod
C. Retina
Some animals have different structural adaptations that allow them to see differently.
True
What is a veterinarian?
An animal doctor
the bouncing of light waves off a surface
reflection
completely blocking light from passing through
a. opaque b. image c. reflection d. convex
a. opaque
An animal that loses some or all of its vision will not have any disadvantages surviving compared to a healthy animal.
False
Some parts of an animal's eye are transparent. How does this help the function of the eye?
The cornea and lens are parts of the eye that are transparent. Light must pass through these structures in order to reach the retina where an image is formed.
a “picture” that light rays make by bouncing off objects
image
Convex are lens is thinner in the middle and always makes objects look smaller.
False- concave
the bending of light as it passes from one transparent material into another
refraction
Some animals have eyes that allow them to see when no visible light is present without the help of other detection systems.
False