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4 years ago

Why are nutrients and gases most evenly distributed in a lake in the winter?

1 answer:

3 0

When the temperature reaches 0˚C (32˚F), the top layer of the lake freezes and turns into ice. In solid form, water molecules are less dense and thus ice floats on the top of the lake.

This solid barrier prevents any wind-induced mixing as well as protects the relatively warm water underneath. Furthermore, light is also blocked so that photosynthesis is inhibited during this period. As the lake water is separated from the atmosphere, no direct oxygen diffusion occurs.

All these factors together causes a more even distribution of nutrients and gases in a lake in winter.

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Biologists can grow specific plants to detoxify an area contaminated with heavy-metal pollution using the method of . To rid an

Rus_ich [418]

Answer:

Biologists can grow specific plants to detoxify an area contaminated with heavy-metal pollution using the method of Bioremediation.

To rid an area of mosquitoes, biologists introduced a species of fish into bodies of water that feed on the mosquito larvae. This method is an example of Biological Augmentation.

Explanation:

Bioremediation can be described as a process which uses plants or microorganisms to detoxify contaminants that are present in an area. The enzymes of a plant or animal tend to break down the contaminants and hence, we can make an area rid of contaminants in this way.

Biological augmentation can be described as a method by which organisms such as bacteria are introduced in an area to get rid of wastes.

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4 years ago

Read 2 more answers

Drag each of the labels into the appropriate position to indicate which blood type is being described.

Zielflug [23.3K]

Answer:

Type O

Expresses the B agglutinin

Expresses all the major antibodies

The most common US blood type

The universal donor

Type AB+

Expresses all of the major antigens

Expresses the D antigen

The least common US blood type

The universal acceptor

Expresses the Rh factor

Expresses A agglutinogen

Explanation:

Blood type is a grouping of blood into classes that have the presence or absence of antibodies and or antigens on the red blood cell surfaces

The class of blood determines whether the antigens are glycolipids, carbohydrates, proteins or glycoproteins of Type O

The blood type of a person is an inherited trait from both parental gene. There are various blood grouping system with the ABO and Rh systems being the most important as they determine the suitability of a given blood for transfusion.

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3 years ago

A nurse is administering medications to a client diagnosed with hepatitis

mr Goodwill [35]

It will help treat it, there's Hope of slowly treating it you have to have faith and patience.
Hope this helps :)

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3 years ago

The main function of the small intestine is nutrient absorption. Which of the following structural qualities of the intestine in

Bogdan [553]

Answer:

The correct answer will be option a and b.

Explanation:

The food is digested and absorbed in the small intestine, a long folded tube which lengths about 20 ft or 6m.

The small intestine increases the surface area for food absorption as they have circular folding as well as the finger-like projections called villi and microvilli in the lumen of the intestine. These villi help in absorption of the nutrients from the intestine.

Thus, option a and b are the correct options.

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4 years ago

Imagine that you are walking through a forest on a chilly day, and you can clearly hear the fallen leaves crunch underfoot. this

BabaBlast [244]

Answer: This forest would be located in somewhere like rio

Explanation:

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3 years ago