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3 years ago

Describe a feedback loop that affects tennessee’s climate

1 answer:

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Read all this
In climate change, a feedback loop is the equivalent of a vicious or virtuous circle – something that accelerates or decelerates a warming trend. A positive feedback accelerates a temperature rise, whereas a negative feedback decelerates it.

Scientists are aware of a number of positive feedbacks loops in the climate system. One example is melting ice. Because ice is light-coloured and reflective, a large proportion of the sunlight that hits it is bounced back to space, which limits the amount of warming it causes. But as the world gets hotter, ice melts, revealing the darker-coloured land or water below. The result is that more of the sun's energy is absorbed, leading to more warming, which in turn leads to more ice melting – and so on.

Various other feedbacks – related to emissions from soils and permafrost, for example, and changes to ocean evaporation – are known or thought to exist.

Feedback loops such as these are complex in themselves and even more complex when considered as part of an integrated global climate system. Some are already at work, while others have yet to kick in. Others still – both positive and negative – may yet be discovered. These uncertainties, coupled with historical evidence for the climate changing rapidly in the past, led one prominent climate scientist to compare releasing greenhouse gases into the air with "poking a beast with a sharp stick".

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ATP is called the energy currency of the cell because

VikaD [51]

D. Most of the energy that drives metabolism is supplied by ATP

5 0

3 years ago

Read 2 more answers

A. Review What are the major elements of life?

tino4ka555 [31]

Answer:

1. The major elements of life are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulfur.

2. Its ability to catenate; its ability to form bonds easily with other elements such as hydrogen, oxygen and nitrogen; its ability to form single, double and triple.

3. Carbohydrates, Proteins, Lipids, and Nucleic acids

4. Carbohydrate provide energy; Proteins serve as structural elements;

Lipids serve as structural components of membranes;

Nucleic acids store and transmit genetic information

5. Proteins are considered polymers while Lipids are not because proteins are composed of monomeric subunits of amino acids whereas lipids do not have monomeric subunits.

Explanation:

1. The major elements of life are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulfur as they are found in many structures of living organisms- in proteins, carbohydrates, nucleic acids and lipids.

2. Carbon has the ability to form different large and complex structures because:

(I) its ability to catenate which is the ability to combine with one another to form straight, branched chain or ring compounds containing many carbon atoms.

(ii) carbon can form single, double and triple with itself and other life elements.

(iii) the relative stability of the covalent bonds formed by carbon.

3. Four groups of organic compounds found in living things are Carbohydrates, Proteins, Lipids, and Nucleic acids.

4. Carbohydrate provide energy; Proteins serve as structural elements;

Lipids serve as structural components of membranes;

Nucleic acids store and transmit genetic information

5. Polymers are large molecular weight compounds built up from subunits called monomers.

Proteins are considered polymers because they are large molecular weight molecules composed of monomeric subunits of amino acids.

Lipids are not considered polymers because individually, they are not very large molecules and do not have monomeric subunits rather are composed of long fatty acids chains linked to a glycerol molecule.

7 0

3 years ago

Under what circumstances would a species of meat eating animals be most likely to evolve to eat plants

zloy xaker [14]

Answer:

Any insect unlucky enough to land on the mouth-like leaves of an Australian pitcher plant will meet a grisly end. The plant's prey is drawn into a vessel-like ‘pitcher’ organ where a specialized cocktail of enzymes digests the victim.

Now, by studying the pitcher plant's genome—and comparing its insect-eating fluids to those of other carnivorous plants—researchers have found that meat-eating plants the world over have hit on the same deadly molecular recipe, even though they are separated by millions of years of evolution.

4 0

2 years ago

In my opinion I think the main events of glycolysis. How many ATP molecules are produces and consumed by glycolysis? What effect

svlad2 [7]

Glycolysis uses 2 ATP and produce 4ATP. So the net gain is true.

Oxygen is used in the Electron Transport Chain as the final electron recipient from complex 4 cytochrome a₃.

Explanation:

Glycolysis is the process which is common in all forms of respiration where glucose is metabolized into pyruvate. This process is very essential to continue the next steps of different respiration. Glycolysis requires 2 molecules to process substrate level phosphorylation to convert glucose to glucose 6 phosphate and fructose 6 phosphate to fructose 1, 6 bisphosphate. But it produces 4 ATPs. Thus net gain is 2ATP.

In ETC, the hydrogen carriers NADH and FADH gives off the hydrogen to reduce the complex 1 and 2 respectively and itself gets oxidized. Thus the electron given off is transferred between 4 complexes to finally give off to oxygen to form water.

5 0

3 years ago

A concerned male athlete brings a clear red urine specimen to the physician's office The patient reported that the urine appeare

Olegator [25]

Yes.

The kidney is the part of the internal organ that help in the production of urine. And a normal urine should be yellowish in color.

Therefore, in a situation whereby the urine is seen to contain some red tiny droplets, specifically means the presence of an infection to the kidney.

In this case, a cloudy urine might mean the presence of white blood cell which stipulates the presence of infection.

4 0

3 years ago