The Origins Of The Word 'Cell' In the 1660s, Robert Hooke looked through a primitive microscope at a thinly cut piece of cork. He saw a series of walled boxes that reminded him of the tiny rooms, or cellula, occupied by monks. these chambers he used the word 'cell' to describe them, because they reminded him of the bare wall rooms where monks lived.
B) a polypeptide chain forming
C) a protein unreveling
C) A protein unreveling
B. Symbiosis
C. Coevolution
D. Commensalism
Answer:
predation
Explanation:
parasitism is when one animal gains while the other hurts. so is predation.
Stomata open in the daytime, when there is an abundance of heat energy from the sun that causes evaporation of water, causing the guard cells to become flaccid, allowing the stomata to open.
Lens focuses light rays on the retina.
Further Explanation:
The eye is the sensory organ of the organism that allows it to see the object.
The eye consist of various part:
1. Sclera-Outer covering of the eyeball is tough and has white layer called as sclera
2. Cornea-The light enters the eye through it. It is the curved layer in front of iris and pupil.
3. Pupil-It controls the amount of light entering into the eye
4. Iris-it surrounds the pupil and regulates the amount of light passing into the eyes.
5. Lens-It sits behind the iris. It focusses light onto the retina.
6. Retina-It comprises of photoreceptors and blood vessel that nourishes the former. The two main types of photoreceptor:
a. Rods: It is responsible for night vision and are more sensitive to light.
b. Cones: It is responsible for color vision.
The eyeball is basically divided into two regions which are filled by the fluid. The two type of fluid found are
1. Aqueous humor: Is present across the space separating cornea and the lens.
2. Vitreous humor: Is present across the space separating the lens and the retina.
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Answer detail:
Grade detail: Middle school
Subject: Biology
Chapter: The sensory organ
Keywords:
Retina, sensory organ, eye, sclera, cornea, pupil, lens, rods, cones, aqueous humor, vitreous humor, light rays.
In the eye, it is the lens that focuses light rays onto the retina. The pupil, sclera, and iris have other functions relating to vision but do not focus light.
The part of the eye that helps focus light rays on the retina is the lens. The lens is situated behind the pupil and is responsible for directing and concentrating light onto the retina. This is how we are able to see the world clearly. Without the lens, images would not be focused properly on the retina, resulting in blurry vision. Thepupil,sclera, and iris play important roles in eye function, but they are not directly involved in the focusing of light rays onto the retina.
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