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professor190 [17]
3 years ago
7

What is the first part of the eye that light hits.

Biology
1 answer:
DaniilM [7]3 years ago
8 0
The iris I the first part of the eye that light hits.
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Gel electrophoresis separates DNA molecules based on ___. *
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Answer:

Size

Explanation:

All DNA is the same charge, It is ONLY size.

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3 years ago
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Describe ways to produce meat more efficiently, humanely and sustainably. How can we make aquaculture more sustainable. Define o
vredina [299]

Answer: 1. Ways to produce meat more efficiently.

1. Livestock farming

2. Ranching

3. Grazing

2. Ways to make agriculture more sustainable

1. Practicing crop rotations.

2. Planting of cover crops.

3. Elimination and removal of soil tillage.

4. Practicing pest management.

5. Integration of livestocks and crops.

3. Organic Agriculture; this is a system of production that helps sustains the fertility of soils, ecosystems and it's people.

Advantages of organic agriculture

1. Reduction in production costs due to absence of expensive chemicals and fertilizers.

2. Farm workers are healthier.

3. Saves energy.

4. Environment protection.

4. Advantages of relying on perennial crops

1. Perennial crops have better access to groundwater due to their deep roots.

2. They require less irrigation.

3. They are more resistant to drought.

4. They help protect topsoil from erosion, runoff, and lose of nutrients which helps make the land fertile for agricultural purposes.

Explanation: meats can be produced more humanely and sustainably by practicing livestock farming and grazing.

The word organic means natural no chemicals or addictive organic farm produce are usually fertilised using animal waste and dungs.

By practicing crop rotation, the soil becomes more fertile unlike when one crop is planted continuously.

Perennial crops help repair our farmlands, unlike annaul crops. They protect the topsoil.

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3 years ago
The inner mitochondrial membrane contains numerous inward folds called cristae, which greatly increase the surface area of this
erastova [34]

Answer:the villi of the intestine

Explanation:like the cristae of the mitochondria which increase the surface area for the production of ATP,the villi of the intestine acts similarly.

In animals, digested food pass from the stomach to the intestine. In the intestine , enzymes acts on the food. Absorption of food takes place there and there are some structures that facilitates it. The walls of the intestine have numerous foldings , alongside the presence of finger like projection called villi. Microvilli are also presence from the cell walls of the intestine . These projections increase the surface area for the absorbing of food .they brush against food in the intestine and promotes absorption of nutrients.

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_________is the process of releasing one mature ovum from an ovary into that ovary’s fallopian tube.
Inessa05 [86]
I think the answer is ovulation.
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3 years ago
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