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Soloha48 [4]
3 years ago
13

Which describes the basic structure of a fatty acid

Biology
1 answer:
Alik [6]3 years ago
4 0
A fatty acid is a carboxylic acid with a long aliphatic chain. It can be saturated or unsaturated. In order to describe correctly the fatty acid, the length of the carbon chain should be given, the number of double bonds and the exact position of the double bonds.<span />
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The membrane that covers the outer surface of the eye and lines the eyelids is the ________.
otez555 [7]

The answer is conjunctiva. It is a mucus membrane that is responsible of covering the eye. It is comprise of stratified squamous epithelium and even stratified columnar epithelium that makes the stretchable when pulled and back to its original shape.

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4 years ago
Stored energy or energy of position is known as<br> Energy *<br> 1.)Potential<br> 2.)Kinetic
Montano1993 [528]

Answer:

Explanation:

1) potential because it is not "in motion"

4 0
3 years ago
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Which of these agricultural practices is sustainable?
Natalija [7]
B is unsustainable as this is a practice of intensive farming usually conducted indoors, and is resource and energy expensive. C is unsustainable because groundwater is a limited resource and groundwater can take 1000s of years to be recharged. D is unsustainable as this involves moving water across vast distances and is expensive and ecologically damaging. A is sustainable as drought-resistant plants would in the long run use less water.
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3 years ago
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Please help
Ludmilka [50]
A memory B cell is kinda of how it sounds it has a memory of what your body has fought before such as a virus and can stimulate a response quicker then the first time you encountered it. 

If you lack memory B cells your body doesn't built up the same immune response when you come into contact with the virus again.

"Vaccination would prevent further disease" Incorrect, a vaccine lets you build up memory cells to combat the disease if you lack them you cannot build up a defense.
"Vaccination would not prevent further disease" Correct, a vaccine can be a dead version of a virus or parts of a virus that shows your body what to respond to quickly in the future. If you body cannot make memory b cells it wouldn't help to use a vaccine. Your body wouldn't keep a memory of it being bad.
"You would not produce antibodies" Even if your body does not remember a particular virus it does produce antibodies to combat it just not as quick or efficiantly as something it has come into contact with before and produced memory cells.
"You would over produce histamine" Incorrect, different process for that histamine.
6 0
3 years ago
Surviving in the Antarctic is extremely difficult What advantage do Emperor Penguins have that animals in the less-harsh Arctic
Savatey [412]
Emperor penguins have the ability to 'recycle' their own body heat. The arteries and veins lie close together so that blood is pre-cooled on the way to a penguin's feet, wings and bill and warmed on the way back to the heart. Emperors' feet are adapted to the icy conditions
5 0
2 years ago
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