The process of cell division that creates sex cells in sexually reproducing organisms is called meiosis.
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes. In humans, body cells are diploid, containing two sets of chromosomes.
Moreover, it is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each chromosome.
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
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The two systems that are represented in the diagram circulatory and digestivesystem. The correct option is D.
Blood vessels in the circulatory system transport blood away from and towards the heart. Arteries carry blood away from the heart as well as veins carry blood back to the heart.
The circulatory system transports oxygen, nutrients, as well as hormones to cells, and eliminates waste products, like carbondioxide.
Food is broken down into nutrients such as carbohydrates, fats, and proteins by the digestivesystem.
They are then absorbed into the bloodstream and used by the body for energy, growth, and repair. Unused materials are thrown away as feces.
The two systems that are represented in the diagram circulatory including heart and digestive system including alimentary canal.
Thus, the correct option is D.
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B. flagellum
C. cytoplasm
D. nucleus
Answer:
D. nucleus is the answer
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.
Learn more:
1. Learn more about heart brainly.com/question/7301375
2. Learn more about blood brainly.com/question/8168020
3. Learn more about bloodstream brainly.com/question/310282
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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