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Georgia [21]
3 years ago
12

A calorie is the measure of the amount of energy contained in food. Which statement best describes a calorie?

Biology
1 answer:
slava [35]3 years ago
3 0

Answer:

A

Explanation:

A because, A calorie is a unit that is used to measure energy. The Calorie you see on a food package is actually a kilocalorie, or 1,000 calories. A Calorie (kcal) is the amount of energy needed to raise the temperature of 1 kilogram of water 1 degree Celsius.

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3 0
2 years ago
Is part of the air, rocks, soil, and all living things.
Maslowich

Answer:

Carbon

Explanation:

Air — carbon dioxide

Rock — many rocks include carbon, like diamonds and coal

Soil — again, rocks include carbon

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8 0
3 years ago
Explain the evolution of heart in vertebrates
Vera_Pavlovna [14]

Answer:

The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. pisces have a dual chambered heartwhile reptiles and amphibians are having a three chambered finally aves and mammals have four chambered hearts.

Explanation:

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4 0
3 years ago
Which of the following accurately describes kidney function? A. Kidneys are directed by the presence of antidiuretic hormone to
defon
Answer - B. Kidney function is controlled by the blood's composition and hormones.

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6 0
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When the cell cycle is disrupted, cells can grow and divide uncontrollably. what makes cancer cells different from normal, non-c
Alex17521 [72]

When an oncogene is turned on and is not balanced through suppression of tumor suppressor gene, the normal cells become cancerous and divides unregulated. Normal cells differentiate while cancer cells do not. Additionally, while normal cells respond to endocrine and paracrine signals from neighboring cells, cancer cells do not. Cancer cells have malfunctioned apoptosis process due to a malfunctioned p53 tumor suppressor gene. Therefore they continue to divide even when they have damage to their DNA. Cancer cells metastasize because, unlike normal cells, they do not produce an adhesive molecule that allows the cells to adhere to one another to form tissue.





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3 years ago
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