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AnnZ [28]
3 years ago
15

Define food and explain its importance. Solution for class 7

Biology
2 answers:
garik1379 [7]3 years ago
8 0
A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.


Hope it helps
never [62]3 years ago
3 0

Answer:

Food, substance consisting essentially of protein, carbohydrate, fat, and other nutrients used in the body of an organism to sustain growth and vital processes and to furnish energy. The absorption and utilization of food by the body is fundamental to nutrition and is facilitated by digestion.

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Marijuana smoke contains some of the same harmful chemicals found in tobacco smoke. true or false
soldier1979 [14.2K]

The answer is TRUE. Research indicates that marijuana smoking exposes the subjected to 75% more benzanthracene than tobacco smoke. Additionally, marijuana smoke has 50% more benzopyrene, 3-5 times higher aromatic amines and nitric oxide than tobacco smoke. Some research also indicate that marijuana smoke has 20 times more ammonia than cigarette smoke.

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4 years ago
Uranium-235, with a half-life of 713,000,000 years, decays to lead-207. If a rock sample is determined to have one-quarter of th
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A 1.43 billion years

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3 years ago
Write a paragraph describing the primary differences between plant and animal cells. Be sure to include a discussion of the vari
kodGreya [7K]

The difference between animal and plant cells is that they contain different organelles, among these are the chloroplasts that plant cells contain and animal cells do not.

<h3>What are the differences between animal and plant cells?</h3>

Each of these cells will have their own requirements, which is why they will have different types of organelles to be able to meet these requirements. Among the differences will be that plant cells will have chloroplasts to be able to generate their own food since they cannot obtain it by other means, so they will manufacture sugar through sunlight.

In plant cells it will have a cell wall that will be surrounded by a cell membrane. While animal cells will not have this cell wall.

Therefore, we can confirm that plant cells and animal cells will have differences in their content, function and organelles.

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4 0
1 year ago
Select the correct answer. in which terrestrial biome would you find precipitation of 300 to 900 millimeters (mm) each year? a.
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In coniferous forests, the terrestrial biome receives precipitation of up to 300 to 900 millimeters (mm) each year.

Coniferous forests mainly consist of conifers and grow trees that produce thick needles and cones instead of growing flowers and leaves.

These are evergreen plants and stay green, healthy, and sustainable all year long.

In spite of flowers, these trees bear needles annually.

Moreover, conifers are very adaptive trees that can grow in very cold and dry climate zones.

It is due to their adaptability that they can survive all year long without losing a life.

Siberian fir, Dahurian, and Siberian larches are examples of confer forests.

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2 years ago
The phase of mitosis that is characterized by the formation of chromatids is<br> ___
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Answer:

The phase of mitosis where chromatids are formed is <u>Metaphase</u>

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3 years ago
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