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3 years ago

How is primary succession defined?

Biology

1 answer:

mafiozo [28]3 years ago

6 0

Answer:

Primary succession is the orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region. Primary succession occurs in regions characterized by the absence of soil and living organisms.

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matter and energy move through ecosystems between different organisms. how does matter travel through an ecosystem and through e

choli [55]

Answer: In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.

Explanation:

6 0

3 years ago

Protist get energy by

marin [14]

Protist<span> manufacture their own energy by photosynthesis (using sunlight)</span>
<span />

4 0

3 years ago

When people receive organ transplants, they often need to take medications that decrease immune responses because * 2 points D.

Oksana_A [137]

Answer:

The correct answer is A. transplanted organs contain antigens that can trigger white blood cell activity

Explanation:

The body's immune system is designed to seek out and destroy any foreign object it finds in the body, such as a cold or flu virus - or a transplanted organ. The process of destruction of the transplanted organ is called rejection.Immunosuppressive drugs will be provided to prevent your immune system from damaging the transplanted organ. Organ transplants require the use of immunosuppressive drugs capable of controlling the immune response triggered by the presence of antigens foreign to the body itself. The group of immunosuppressants is made up of drugs indicated both in the prevention of rejection of the transplanted organ and in its reversal.

3 0

3 years ago

30 points

MA_775_DIABLO [31]

I'm working on the assignment rn. But here are some clues to help you.

8 0

3 years ago

Does Ajay's diet provide enough protein to meet his RDA of 0.8 g of protein per kilogram of body weight? Answer should include h

Westkost [7]

The given question is not complete, the complete question is:

Ajay decided to stop eating meat a year ago. Now that he is taking a nutrition class, he wonders if his vegetarian diet is as healthy as he thought. He is 22 years old, is 5’9” tall, weighs 154 pounds, and gets little exercise. His diet analysis is shown here:

Food

Serving

Energy (kcal)

Protein (g)

Fiber (g)

Sat Fat (g)

Breakfast

Frosted flakes

2 cups

320

2.7

Low-fat milk

1 cup

103

Orange juice

1 cup

112

0.5

Whole-wheat toast

2 slices

144

2.2

Butter

2 tsp

Coffee

Coffee creamer

1 T

Lunch

Cheese pizza (reg. crust)

2 slices

542

Potato chips

1 oz

155

1.2

Cola

12 oz

136

Ice cream sandwich

143

Dinner

Vegetable Lasagna

10 oz

400

4.8

Garlic bread

2 slices

189

1.5

Green salad

1 cup

Salad dressing

2 T

118

0.3

Ice cream

¾ cup

345

Iced tea

8 oz

Total

2917

21.2

Does Ajay’s diet provide enough protein to meet his RDA of 0.8g/kg of body weight? (2.2lbs = 1kg)

Answer:

The correct answer is yes.

Explanation:

RDA or recommended dietary allowance refers to the minimum amount of a nutrient, that is, regarded as essential for the proper functioning of the body or to sustain good health. The RDA is formulated by the Nutrition Board of the National Research Council.

In the given case, the weight of Ajay is 154 pounds. In terms of kilograms, 1 kg is equivalent to 2.2 pounds.

Thus, 154 pounds will be equal to 154/2.2 = 70 Kg.

Based on RDA, the requirement of protein for a healthy individual should be 0.8 g/kg of the body weight. Therefore, Ajay needs to consume 70*0.8 = 56 grams of protein. However, based on his diet he is consuming 78 grams of proteins in a day. Hence, it can be concluded that Ajay is consuming adequate protein to meet his RDA.

3 0

3 years ago