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Ede4ka [16]
3 years ago
8

Which of the following correctly describes the importance of the nitrogen cycle?

Biology
2 answers:
lesya692 [45]3 years ago
8 0
<span>A to recycle carbon dioxide in the atmosphere</span>
coldgirl [10]3 years ago
6 0
Your answer could be A or C I'm not 100% sure sorry. 
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The fixed pattern of changes in membrane potential during an action potential is coordinated by the sequential opening and closi
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<h2>Na-K channels</h2>

Explanation:

  • Brief sequential change in the membrane potential of excitable cells after stimulus is called action potential whereas membrane potential represent charge difference across the membrane
  • In a typical neuron cell, membrane potential of cytoplasm is negative at rest and hence called resting membrane potential
  • Resting membrane potential of excitable cells is established by Na+ K+ pump and maintained by K+ leaky channels at rest
  • Phases of action potential includes: depolarization, repolarization, hyperpolarization and resting membrane potential
  • Depolarization starts when a threshold stimulus is applied on a neuron when via Na+ mechanically operated channels that trigger action potential
  • Depolarization of membrane potential is due to influx of Na+ via voltage gated Na+ channels
  • 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
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3 years ago
A population of crocodiles is in hardy Weinberg equilibrium which condition must be true
poizon [28]

The right answer is A.

The Hardy-Weinberg principle is a theory of population genetics, which postulates that within an (ideal) population, there is a balance of allelic and genotypic frequencies from one generation to the next.

For this equilibrium to be achieved, there must be no evolutionary forces such as mutations, migration, genetic derivatives, natural selection, the founder effect ...

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List three foctors that the rabbits should be protected from when rearing rabbits.​
Nastasia [14]

Answer:

Build your rabbit a predator-proof hutch made from solid wood with strong wire mesh and sturdy bolts. Outdoor runs should be covered to prevent hawk attacks with a floor to stop foxes digging underneath. Use motion-activated lights and sprinklers to scare predators away.

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In Earth’s mantle, heat is transferred in large convection currents. within these currents,
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heat transfer?

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Answer:

5+

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