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Elden [556K]
3 years ago
9

Has anyone done this worksheet? i need help with it. thanks:)

Biology
2 answers:
Arturiano [62]3 years ago
6 0
I have done it I think
sergey [27]3 years ago
6 0
Try scanning it with the google app with text and usually answer keys pop up good luck!
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What happens when a cold front replaces a warm front
frozen [14]

Answer:

When a cold front overtakes a warm front, it creates what's called an occluded front that forces warm air above a frontal boundary of cooler air masses.

Explanation:

The presence of a cold front means that cold air is advancing and pushing underneath warmer air. This is because the cold air is ‘heavier,’ or denser, than the warm air. Cold air is thus replacing warm air at the surface.

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1 year ago
Proteoglycans are a group of macromolecules formed from: a. proteins and glycosaminoglycans. b. proteases and glycosaminoglycans
Marianna [84]

Answer:

Proteins and polysaccharides.

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Proteoglycans are heavily glycosylated proteins. These proteoglycans are present in the extracellular matrix of the animal cells and acts as a lubricant for the cells.

Proteoglycans are proteins that are covalently bonded with muco polysaccharidse. Proteoglycans are formed by the bonding between proteins and carbohydrates ( polysaccharides). Proteoglycans can combine with collagen to form cartilage and may affect the stability of a protein.

Thus, the correct answer is option (E).

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3 years ago
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