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topjm [15]
3 years ago
5

The primary source of fuel for the brain i

Biology
1 answer:
Vlad1618 [11]3 years ago
5 0
The human brain consumes up to 20% of the energy used the entire human body which is any other single organ. the brain represents inly 2%of the body wheight yet it recieves 15% of the cardiac output and 20% of the total body oxygen consumption. 
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In an ecosystem, energy O A. is mostly lost as heat. B. moves as a circle. C. is eaten by animals. D. is decomposed by fungi. .​
Irina18 [472]

Answer:

IS EATEN BY ANIMALS

Explanation:

3 0
2 years ago
The arctic fox and gray fox evolved from the same species over thousands of years. can you place these steps in the process of a
elena55 [62]
Allopatric speciation, also referred to as geographic speciation, is a method of the formation of new species due to isolation of the species from one another through geographic means.

The first step in this process is geographic isolation, which means that the original population is divided into two groups due to geographical reasons such as movement of continents or formation of water bodies.

Next, the species are subjected to different selection pressures due to their different environments. Eventually, the gene pool becomes very different for the two species due to the different selection pressures and because they are not allowed to mix.

Finally, after enough time passes, speciation occurs, which means that the two populations cannot breed to form fertile offspring.
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2 years ago
The medical specialist that frequently determines the cause of death is the
Ad libitum [116K]
Answer:  board-certified "pathologist" (physician).
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6 0
2 years ago
Plants maintain homeostasis by ____. 1) opening and closing stomata. 2) converting excess sugar molecules to a lesser number of
Nuetrik [128]
D)all of the above 

<span>Homeostasis is the property of a system, either open or closed, that regulates its internal environment and tends to maintain a stable, constant condition within an organism. (Eg controlling amount of sugar in the bloodstream, keeping waste levels at acceptable levels.) </span>

<span>Opening and closing stomata controls the gas levels within the plant. </span>
<span>Converting excess sugar molecules to a lesser number of starch molecules regulates sugar levels. </span>
<span>Excreting waste through the cell membrane prevents waste build-up.</span>
5 0
3 years ago
Read 2 more answers
In the early part of the twentieth century, who owned most of the farms?
Romashka-Z-Leto [24]


Maybe B. the government because maybe he was the important one.


6 0
2 years ago
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