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aniked [119]
3 years ago
13

a patient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn't healed in a long time. what

vitamin deficieny most likely caused these symptoms?​
Biology
2 answers:
julsineya [31]3 years ago
7 0

Answer:

Lack of Vitamin C

Explanation:

lack of Vitamin C would cause all of these to happen

yuradex [85]3 years ago
4 0

Ay, That fellow forgot ta bring lemons on his long voyage across thee Atlantic, Lack of Vitamin C can give the poor sod scurvy which can end a life quick when explorin the deep blue.

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Following repolarization, the neuron may become slightly hyperpolarized before it re-establishes its resting membrane potential.
RoseWind [281]
<h2>Membrane potential </h2>

Explanation:

  • Membrane potential represents charge difference across the membrane, all biological cells are negative inside (cytoplasm) and positive outside (due to difference in ionic distribution)  
  • In a typical neuron cell membrane potential of cytoplasm is negative at rest (when no stimulus is applied) hence called resting membrane potential
  • Resting membrane potential of excitable cells is established by Na+ and K+pump
  • Repolarization starts with the efflux of K+ by the opening of voltage gated K+ channels
  • Voltage gated K+ channels starts to open when voltage gated Na+ channels becomes inactive
  • Hyperpolarization occurs due to excessive efflux of K+ by voltage gated K+ channels
  • Additional efflux of K+ occurs due to slow inactivation of voltage gated K+ channels
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3 years ago
Describe what happens to an ecosystem when a keystone species is removed.
enot [183]

Answer:

The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.

Explanation:

A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.

I HoPe ThIs HeLpS!!!!!

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3 years ago
Which human activity has been banned in most areas because of its negative impact on the biosphere?
Ugo [173]
The human activity banned is restaurandts and most public areas is smoking
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A researcher is studying different mutations in yeast. He isolates one yeast strain that fails to properly form replisomes. When
olga nikolaevna [1]

Answer:

The correct answer is "both Cdc6 and Cdt1"

Explanation:

The replisome is a complex molecular system that allows for the replication of DNA in yeast. There are multiple genes that participate in the replisome function, however if a researcher finds out that a yeast strain fails to properly form replisomes it is very likely that the genes that might be mutated are both Cdc6 and Cdt1. Cdc6 and ORC are the genes that send the signal to the yeast to start the replisome formation, and Cdt1 is a DNA replication factor that if it is mutated it could cause that yeast is not able to form the replisome.

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Describe one example to two subsystems working together
lbvjy [14]

Answer:

helping out sharing

Explanation:

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3 years ago
Read 2 more answers
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