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True [87]
3 years ago
11

What did Charles Darwin do that allowed him to make some significant

Biology
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

Charles Darwin went to the Galapagos Island(s).

Explanation:

Charles Darwin took a boat to the Galapagos Island(s) to study plants and animals that proved to show some similarity between each other, such as two finches, which is actually one of his most popular discoveries.

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Which of the following plant structures is correctly paired with its function? (2 points) dermal tissue/protects against pathoge
Genrish500 [490]

Answer: The plant structures are correctly paired with its functions

Explanation: Dermal tissue: protected soft tissues of plants and controls interactions with plant surroundings(It covers the outer surface of herbaceous plants)

Parenchyma tissue: functions in storage, photosynthesis and bulk of ground and vascular tissue

8 0
3 years ago
Which resource takes the longest amount of time to renew?
mash [69]

Answer is c. Natural gas.

Natural gas is a fossil fuel in liquid form that can be used as an energy source. It is found in subterranean reservoirs, often near oil deposits. It is non-renewable energy source. It takes very long time to renew. Natural gas is less pollutant as compared to coal and petroleum because when it's burned, it releases 25 % fewer greenhouse gases and pollutants. hydroelectric power, solar power and nuclear energy are renewable sources.  

6 0
3 years ago
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Which one is better? natural , synthetic or both
Georgia [21]

Answer:

Natural Is better

Explanation:

Natural Chemicals are produced by nature without any human intervention. Synthetic may or may not be found in nature

4 0
3 years ago
Comment on why do you think cells prefer to use carbohydrates as a source of energy before they use fats and proteins.
kompoz [17]

Answer:

This can be explained  based on structure, and on metabolisms of  carbohydrate.

Explanation:

Carbohydrate has a relatively simple structural composition than the  either protein or fatty acids. The C, H and Oxygen molecules are of  relatively fewer in number and few  chains than fats and protein.Thus  cells will spend less energy to break bonds(catabolisims) among these molecules during cellular respiration  pathways  to trap the energy.

In addition glucose the end products of carbohydrate did not need any processing before it enters glycolysis, Kreb's Cycle and oxidative phosphorylation pathways to generate energy for the cells.

Conversely, for protein to be used it has to be first deaminated(removal of amino acid) by the liver  before it enters glycolysis,while fats needs to  be broken down and undergo beta oxidation   with the long chains removed  before it can  form acetyl CoA. Therefore cells will prefer few steps, less endergonic  pathways of glucose than longer more endergonic amino acids  and fatty acid pathways.

Furthermore, glucose can be used in cellular respiration to  produce energy either aerobically or anaerobically, while fats can only be used anaerobically. Therefore, since cells usually prefer to thrive in aerobic conditions they  breakdown glucose easily during this period, and when lack of oxygen occurs they switched to anaerobic, Thus, the versatility of glucose to oxygen concentration makes glucose a better choice. Besides if fats was used anaerobically, ketone bodies build up which may be toxic to the cells.

4 0
3 years ago
Some women who took the drug thalidomide in early pregnancy gave birth to children with serve birth defcets. Which is thalidomid
zhannawk [14.2K]
It would be virus. I’m sure. The rest can’t do harm. “If you are pregnant, it's important to take precautions against viral infections. A viral infection is a contagious illness. Most viruses will not hurt your baby. However, some viruses can cause miscarriage or birth defects in your baby.”
8 0
2 years ago
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