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salantis [7]
3 years ago
14

Retina, Iris, Pupil, Cornea, Lens, etc. How do these eye parts function?

Biology
2 answers:
Trava [24]3 years ago
4 0

Answer: grad-point answer: “it contracts and expands to control the amount of light that enters the eye” for iris

Explanation:

Katena32 [7]3 years ago
3 0

The functions of eyes parts are as follows:

Retina: The rays of light focused on the retina by the cornea and lens. The retina produces an image which is sent along the optic nerve of the brain.

Iris: It changes the size of pupil and allows different amount of life to enter the eyes.

Pupil: The light enters to the eyes through it.

Cornea: It forms the outer coating of the eyeball and covers the iris and pupil.

Lens:


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Sliva [168]

Answer:

X - Flagellum, Y - Bacterial DNA, Z - Cytoplasm

Explanation:

A bacterium is a living thing that are majorly known for causing diseases but are important for human life.

A bacterium is also consist of several organelles such as cell wall, cytoplasm, flagellum,  bacterial DNA, cytoplasm, ribosomes and others.

The diagram shows three main organelles that are X - Flagellum, Y - Bacterial DNA, Z - Cytoplasm. Flagella functions for the locomotion of the bacteria, bacterial DNA is a genetic material of the bacteria, and cytoplasm is a gel-like matrix composed of enzymes, water, nutrients and other waste material.

Hence, the correct answer is "X - Flagellum, Y - Bacterial DNA, Z - Cytoplasm".

4 0
3 years ago
Which statement is an example of a scientific theory?
Vladimir79 [104]

Examples of a scientific theory

Scientific theories are testable and make falsifiable predictions. They describe the causes of a particular natural phenomenon and are used to explain and predict aspects of the physical universe or specific areas of inquiry (for example, electricity, chemistry, and astronomy).

3 0
3 years ago
What is the relevance of osmosis to the root hair cells?​
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Answer:

absorb water from the soil by osmosis.

Explanation:

Root hair cells

Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption

7 0
2 years ago
How does water's polarity help it to dissolve so many substances?
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When a polar substance is put in water, the positive ends of its molecules are attracted to the negative ends of the water molecules, and vice versa

Explanation:

id if this helped but

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A person infected with the human immunodeficiency virus may have any symptoms for a period of time. During this period, the viru
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