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laila [671]
3 years ago
15

Is it more efficient from an energy standpoint to be a vegetarian vs. an omnivore?

Biology
1 answer:
lesantik [10]3 years ago
7 0
Vegetarian is the best choice

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Organisms that can interbreed and produce offspring that can grow to produce young are of the same __________.
olya-2409 [2.1K]
The answer is specie. 
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In 1928, sir alexander fleming was studying staphylococcus bacteria growing in culture dishes. he noticed that a mold called pen
Olenka [21]

A mold was developing in some of the culture dishes used by Sir Alexander Fleming and was eliminating some of the bacterial population. The hypothesis is that the mold was generating a chemical, which was toxic to the bacteria in the dishes and killed them.

The hypothesis was examined by separating the Penicillium and administering it into the solution of nutrient broth. After the growth of Penicillium it was withdrawn from the broth. The broth was then eventually supplemented to the bacteria and the bacteria died. Thus, it can be concluded that the hypothesis is supported.


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3 years ago
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Which statements describe the movement of blood through the heart? Check all that apply. 
vlada-n [284]

Answer:

The correct answer would be Atria push blood into the ventricles and Ventricles push blood out of the heart.

In humans, four chambered heart is present with two atria and two ventricles.

Deoxygenated blood from all over the body is passed into the right atrium through vena cava (superior and inferior).

Simultaneously, oxygenated blood from the lungs is passed into the left atrium of the heart with the help of pulmonary vein.

Both the atria contract at the same time to drain their blood into respective ventricles.

The ventricles undergo relaxation while receiving blood.

The valves present between the atria and ventricles (tricuspid and bicuspid valve) ensures that the blood flows in one way direction only. They shut down as the ventricles contract and produce the sound "lub".

The ventricles contract simultaneously to pump blood out of the heart. The right ventricle pumps deoxygenated blood into pulmonary artery which takes the blood to the lungs for oxygenation.

The left ventricle passes the oxygenated blood through aorta to all the parts of the body.

The pulmonary and aortic valves prevent the back flow of blood and shut at the same time which creates second sound called as "dub".

8 0
3 years ago
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This is the evaluation of scientific research, creative work, or performance by other
Sidana [21]

Answer:

The answer is peer review. <u><em>Peer review </em></u> is the evaluation of scientific research, creative work, or performance by other  people in the same field in order to maintain or enhance the quality of the work or performance in that  field,

Explanation:

Evaluation of a producer's work by people having the same knowledge or subjects is termed as peer review. Science is an important subject and researches made in this field if made correctly can be very beneficial to humans and earth. But is researches that are conducted are wrongly approved then they can have adverse effects on humans and earth. Hence, any work or scientific research must have a positive peer review.

4 0
3 years ago
What is an enzyme-substrate complex
grin007 [14]

Answer:

An enzyme-substrate complex is a temporary molecule formed when an enzyme comes into perfect contact with its substrate.

Explanation:

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