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Salsk061 [2.6K]
2 years ago
14

What pigments made of?

Biology
1 answer:
Mumz [18]2 years ago
3 0

Synthetic organic pigments are derived from coal tars and other petrochemicals. Inorganic pigments are made by relatively simple chemical reactions—notably oxidation—or are found naturally as earths. Inorganic pigments include white opaque pigments used to provide opacity and to lighten other colours.

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The rate of kidney filtrate formation would normally be dependent upon all of the following factors except __________.
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Answer:

The correct option is BLOOD CALCIUM LEVEL.

Explanation:

The options attached to this question are given below:

A. Filtration membrane integrity

B. Systemic blood pressure

C. Blood calcium level

D. Renal artery/arteriole diameters

Kidney is an excretory organ, which functions by filtering waste products out of the blood. The rate at which the kidneys filter the blood depend on some factors; such factors include: water intake, systemic blood pressure, vasoconstriction, dehydration, filtration membrane integrity etc.

Blood calcium level does not have any effect on the rate at which the kidneys filter the blood.

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Why do lipophilic hormones require carrier proteins while being transported in the blood?
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