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2 years ago

Which of these changes involve forming or breaking chemical bonds?

Biology

2 answers:

alekssr [168]2 years ago

8 0

the answer is B hope this helps

Anastaziya [24]2 years ago

3 0

The right answer is B burning and digesting

Combustion (burning of molecules) is an exothermic oxidation-reduction reaction. When the combustion is intense, it results in a flame or an explosion (deflagration or detonation if the flame front exceeds the speed of sound).

This chemical reaction is a recombination of molecules. It goes through an intermediate step during which the molecules are "destructured" but not yet recombined; these are called radicals and are very reactive. In the case of combustion, the radicals are created by chemical bond breakage due to thermal energy, and they will be able to act on the molecules of the product (releasing other radicals) and thus generating a chain reaction that will continue as long as the following two conditions are met: presence of fuel and oxidizer.

Digestion is a food processing that is ingested into smaller particles that can or can not be assimilated by the body.

In chemical digestion, polysaccharides such as starches and glycogen are degraded to monosaccharides. The same for proteins that are degraded into amino acids ...

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Gnesinka [82]

I think this would be the environment. That's my guess

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2 years ago

Which term refers to the stages an organism goes through, from birth to death?

Verdich [7]

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3 years ago

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Anna11 [10]

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2 years ago

What is the percentage size difference between the giant dragonfly and the modern dragonfly?

viva [34]

Answer:

Giant Dragonfly - 2.5 FEET

Modern Dragon Fly - 1-4 Inches.

Explanation:

Size Difference in Percentage: The Giant Dragonfly is 250% - 160% bigger than the Modern Dragonfly.

6 0

2 years ago

Check all that are characteristics of the esophagus. Check All That Apply

kvv77 [185]

Answer:

Option (A) and (D).

Explanation:

Esophagus may be defined the long tube like structure that connect the throat with the stomach. The partially digested food from the buccal cavity to the stomach is pass down through the esophagus.

The mucosa of the esophagus contains the thick layer of the nonkeratinized squamnous epithelium. The smooth muscles are present in some layers only. The two layer of the muscle that are superior to the one third of the muscularis are the skeletal muscle.

Thus, the correct answer is option (A) and (D).

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2 years ago