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zepelin [54]
3 years ago
6

Why are bacterial cells often used as a host for genetic manipulation? (Choose all that apply)

Biology
1 answer:
seraphim [82]3 years ago
7 0

Answer:

because bacteria reproduce and make proteins very quickly

because the plasmids in bacteria also contain nucleotide sequences called restriction sites that can be cut easily by enzymes

Explanation:

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The action potential spreads through an axon by Group of answer choices depolarizing adjacent membrane to threshold, triggering
Step2247 [10]

The action potential spreads through an axon by depolarizing adjacent membrane to threshold.

  • K+ departs the cell after Na+, which enters the cell first. Ions can move freely across the axon membrane because of the difference during the action potential.
  • Because sodium contains a positive charge, the neuron becomes more positive and depolarized. Potassium channels take longer to open. As soon as the cell does open, K+ rushes out, reversing the depolarization known as repolarization.
  • Sodium channels close during the peak of the action potential when potassium leaves the cell. When potassium ions are effluxed, the membrane potential is lowered or the cell becomes hyperpolarized.
  • Outside of the cell, the concentration of Na+ is greater than inside the cell. while the concentration of K+ is  is greater inside the cell than outside.

learn more about action potential here: brainly.com/question/6705448

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4 0
1 year ago
Explain the connection between earths magnetic field and iron
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Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments.The Earth's magnetic field is somewhat caused by the composition of the earth's core which is rich in iron minerals. There is a solid inner core that is made of iron which makes up to 2/3 of the moon's size. The charged metal of the iron produces electric currents, consequently resulting to Earth's magnetic field.
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3 years ago
The sensory receptors in the nose send signals to the ________. These signals are then processed by the _______, which sends a r
PSYCHO15rus [73]
Olafactory bulbs because it has to do with nerve signals and neurons. Brain because it is the center of the nervous system and the closest to the nose in terms of the nervous system. 
6 0
2 years ago
What's the difference between skin infections and rashes?
Black_prince [1.1K]

Answer:

rashes is caused by heat while skin infection is caused by bacteria and infection

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3 years ago
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Which of the following fits the definition of a public good
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something the economy can buy with its own money for own personal use

Explanation:

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