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Vadim26 [7]
2 years ago
6

A particular region is experiencing a viral epidemic. Which of the following would increase the likelihood of the epidemic becom

ing a pandemic?
A.A vaccine is developed that prevents individuals from being infected

B. Neighboring populations have little to no immunity to the disease.

C.The infection can be spread only by direct contact from one person to another

D.The region is remote and experiences little to no tourism.

Biology
2 answers:
Mama L [17]2 years ago
4 0
A is the answer your welcome
vitfil [10]2 years ago
3 0
A) A vaccine is developed that prevents individuals being infected
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mrs_skeptik [129]

Answer:

RBCs contain hemoglobin (pronounced: HEE-muh-glow-bin), a protein that carries oxygen. Blood gets its bright red color when hemoglobin picks up oxygen in the lungs. As the blood travels through the body, the hemoglobin releases oxygen to the different body parts.

Explanation:

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8 0
2 years ago
Which of the following could be done to help reduce global warming trends?
timama [110]

Answer: A. Plant more trees

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5 0
3 years ago
So i'm doing some test stuff and im kind of sucky at science sooo
VikaD [51]
I'll do my best to help you pal!
1)True
2)A
3)A
4)C
5)A
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6 0
3 years ago
15 points for this! Thank You
zalisa [80]
Well, I don’t know the question but I believe that John is correct but they would have to have to be strong stilts
3 0
3 years ago
Pain signals often have two components: an acute sensation of "first pain" which is felt almost immediately after an injury, and
o-na [289]

Answer:

This suggests that neurons that send the signals that we perceive as first pain Myelinated Tpye A-delta___, and neurons that send the signals that we perceive as second pain Unmyelinated-Type C.___.

Explanation:

Physiologically, primary afferent neurons that innervated the the touch, pain, temperature,and pressure receptors in the effectors  to input sensory signals to the spinal cord and the brain  are categorized based on their diameter, sizes, and nature of  myelination. Based on this;

<u>A-alpha has the largest diameter, myelinated, and sensitive to sensation from the muscle cells</u>

<u>A-beta are next in diameter, myelinated and sensitive to sensation  of touch.</u>

A-delta followed in diameter, and  size. They are mylinated, and sensitive to pain and temperature.

<u>C-fibres are least in diameter, they are unmyelinated, but sensitive to pain, touch and temperature.</u>

<u />

<u>Therefore, if the speed of conduction,of action  potential in a neuron depends on the diameter(thickness) and myelination of the axon(saltatory conduction)</u> :

''then, acute sensation/ first pain should be transmitted by the A-delta fibre. While the the slower/second pain should be transmitted by the slower unmyelinated - C-fibres''.

5 0
3 years ago
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