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MrRissso [65]
3 years ago
13

What are some questions that biologists might ask about the living things they study?

Biology
1 answer:
Mashcka [7]3 years ago
5 0

Molecular biology is asked about the living things they study

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Primary features of a long bone. Which of the following correctly pairs the structure at C with its primary component?
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Answer:

periosteum ----> dense irregular connective tissue

Explanation:

  • The periosteum is a dense fibrous membrane that covers the surfaces of bones.

The periosteum consists of two layers-

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    2. Inner cellular layer

  • It is mainly composed of dense irregular connective tissue along with a layer of simple squamous epithelium.
  • The function of periosteum is to cover the surface of all the bones except those surfaces that are covered with cartilage such as joints and tendons and ligaments.
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Refer the the graph below showing the absorption spectrum of chlorophyll a. Explain what the graph is showing
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Answer: The graph shows that chlorophyll a absorbs light principally around 420-450 nm and 650-680nm wavelengths

Explanation: Chlorophyll a is a pigment found in plants that traps light energy for use in photosynthesis. Chlorophyll a absorbs light mostly in the blue and orange-red wavelengths. This is shown in the graph, where the peaks are around the 400nm and 600nm wavelengths, corresponding to blue and red in visible light.

This absorption means the pigment is 'excited' by this light, sending into a higher state if energy which provides energy for the reactions of photosynthesis.

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Which lists the substances from least acidic to most acidic
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a. ammonia, blood, milk, orange juice

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c. ammonia, milk, blood, orange juice

d. orange juice, blood, milk, ammonia

Explanation:

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