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attashe74 [19]
3 years ago
15

What is the most common source of contamination with e. coli?

Biology
1 answer:
Tcecarenko [31]3 years ago
5 0
The most common source of contamination with E.coli is by eating contaminated food like meat and eggs.
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vlada-n [284]

they can cause a toxic effect or failure of therapy depending on the drug-nutrient combinations

6 0
3 years ago
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What are two different things you could do to reduce the amount of Carbon Dioxide In the Atmosphere? Plz explain
mylen [45]
Well one thing u could do is to reduce the amount of fossil fuels burning (idk how, maybe finding a better alternative to burning them) another way would be planting more trees, or buy energy efficient products. Basically these things just reduce the carbon footprint by reducing the amount of fossil fuels (because we only have a limited amount) i hope this helped
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3 years ago
Why is the resting membrane potential negatively charged?
Iteru [2.4K]

Explanation:

The resting membrane potential is negative due to the buildup of more sodium ions outside the cell than potassium inside.

Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential.

Further Explanation:

Neurons have unique structures which aid in facilitating communication by sending and receiving electrical signals very efficient. Parts of a neuron are separated into the

dendrites which receive messages from other neurons allowing them to pass and some of the cell body which contains typical cell components like the nucleus, endoplasmic reticulum and mitochondria.

The axon is an insulated (by the myelin sheath) tubular structure which acts as a bridge to price impulses to other neurons these also contain axon hillocks which are junctions between the axon and cell body

Synapses are junctions where axons connect to dendrites of other neurons at these junctions chemical reactions occur in order to facilitate the passage of information as chemical signals.

There are several neuron types which include sensory motor and into neurons which bridge the two.

  • The refractory period describes a period between the initiation of an action potential where Na+ channels are closed, and immediately after the action potential’s peak. Action potentials would require an influx of more positively charged ions; these must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.
  • Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more Na+ than K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential

Learn more about the autonomic nervous system at brainly.com/question/10386413

Learn more about neurotransmitters at brainly.com/question/9424160

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

6 0
3 years ago
modern methods of agriculture have contributed to the problem of soil depletion because many of these methods what
Natalija [7]
Because they interfere witht he natural cycling of elements.

An example is crop harvesting. The practice of removing part or all of the crops grown from the soil accelerates the loss of nutrients from the soil. The cycling of nutrients from plant uptake and release is interrupted by crop removal.

Hope this helps!
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3 years ago
PLEASE HELP WITH THESE 2 I WILL GIVE BRAINLIEST
wlad13 [49]

Answer:

<h2>D.Sea star</h2>

Explanation:

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