<span>The purpose of a neuron is to receive information, and then determine where to send the message of that information (e.g. to a muscle). The shape of a neuron is suited for this because it has a shape that looks like tree branches which allow it to receive and send messages at a very fast rate in order to achieve its purpose.</span>
<span>Light goes through the cornea first. This is the clear covering over the pupil and iris. The cornea bends the light and forms an image. The light then passes through the pupil, which is the dark circle in the center of the iris, the colored part of the eye. The pupil controls the amount of light that enters the inner eye. Then the light goes to the lens of the eye. The lens is clear and flexible and focuses an upside-down image onto the retina. When the retina senses the image, it sends impulses to the optic nerve, and the optic nerves transmits them to areas in the brain that flip the image upright.</span>
All cells have selectively permeable membranes, which means that they let important molecules inside the cell while leaving other ones outside. Important molecules go inside the cell by the process of diffusion or osmosis.
Answer:
Explained below
Explanation:
The wall of an eyeball has three layered-
- Sclera
- Choroid
- Retina
The space in the center of an eyeball is filled with jelly like material called vitreous humor, which allows light to pass through retina.
Innermost layer of eyeball (retina) is a soft, light sensitive layer of nervous system tissue. Signals from retina to brain carried out by optic nerve, which convert them as visual image.
Answer:
B
Explanation:
destroyed red Blood cells