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kirza4 [7]
2 years ago
15

What is key to preventing extinction of any one species?

Biology
1 answer:
kramer2 years ago
8 0
A proper habitat and Preferences different specialized niches
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On a global scale, energy _______ ecosystems whereas chemical elements __________ ecosystems.
agasfer [191]

Answer:

c. flows through... are recycled in

Explanation:

In an ecosystem, energy gotten from the sun by plants  flows through the ecosystem from one trophic level to another, as the energy in is transformed from one form to another via nutrition.  

On the other hand, chemical elements in the form of nutrients are recycled and made available to primary producers when decomposers in the ecosystem to break down organic matter. During decomposition, energy is released. Several nutrient recycling process have feedback mechanisms that ensures chemical elements are recycled back into the ecosystem as they are being used up by organisms.  

8 0
2 years ago
Some people worry that the increasing number of cell phones will cause cancer because of the energy of the radio waves they emit
Rzqust [24]

Answer:

Cell phones emit radiofrequency energy, a form of non-ionizing electromagnetic radiation, which can be absorbed by tissues close to the phone. The amount of radiofrequency energy a person is exposed to depends on the frequency of the signal and the amount of time they spend on the phone. The Federal Communications Commission (FCC), the International Agency for Research on Cancer (IARC), and the American Cancer Society (ACS) all agree that more research is needed to determine the possible health effects of cell phone use. So far, there is no scientific evidence that proves that cell phone use causes cancer. Some studies have suggested a possible link between cell phone use and cancer, but more research is needed to confirm these results. The ACS does not recommend limiting cell phone use because the risk of cancer is still unknown.

Hope this helps!

Explanation:

5 0
2 years ago
What effect will first-degree burns most likely have on the upper layer of somebody’s skin?
dimaraw [331]
Cccccccccccccccccccccccccccccc
5 0
3 years ago
2. In the citric acid cycle, malate is oxidized to oxaloacetate by the enzyme malate dehydrogenase, which uses NAD+ as an electr
atroni [7]

Answer:

NAD+ act both as coenzyme as well as electron acceptor compound and get reduced to NADH by accepting electron.

Explanation:

NAD+ act as co enzyme of various biological catalyst such as malate dehydrogenase, isocitrate dehydrogenase etc.

             NAD+ can act as co enzyme only in its oxidized form but not in its reduced form called NADH.

         Many reaction needs NAD+ to occur such as conversion of glyceraldehyde 3 phosphate to 1,3 bisphosphoglycerate, malate to oxaloacetate.

              That"s why NAD+/NADH ratio is kept very high because if this ratio bychance get  low then it will hamper the normal redox potential of NAD+/NADH.As a result many biochemical reaction will not take place.

6 0
3 years ago
What process converts the mrna "message" into a sequence of amino acids? select one:
Korvikt [17]
The correct answer is D. translation.
3 0
3 years ago
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