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Ratling [72]
3 years ago
10

The death rates in the United States decreased more than 40 percent from 1930 to 2015. Which factor could have contributed to th

is decrease?
OA
increased food insecurity
OB
better medical facilities and treatments
C.
decreased farmland
OD
refusal of vaccines
E
illiteracy
Biology
1 answer:
Bezzdna [24]3 years ago
4 0

Answer:

The correct answer is - B. better medical facilities and treatments.

In the past century, the life expectancy in the United States have increased significantly, in fact it is almost doubled. The death rates have decreased for around 40% and the biggest reason for this trend are the advancements in the medical field. The medical facilities and treatments have improved significantly. The technological advancements contributed to the medical field a lot, made it much more efficient, and because of that the prevention of diseases, curing, and the saving of lives have skyrocketed, resulting in much better, healthier,and longer life of the population

i hope this will help u

mark it as brainliest

and rate it

Explanation:

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If an inhibitory synapse fires at the same time and at the same distance from the initial segment as an excitatory synapse of th
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Answer:

If an inhibitory synapse fires at the same time and at the same distance from the initial segment as an excitatory synapse of the same intensity there will be no changes in the potential in the firing zone.

Explanation:

Under normal conditions, the transmembrane potential depends on the ionic charges present in the intracellular and extracellular spaces. The extracellular space load is usually positive and in the cytoplasm is negative.

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An excitatory synapse is one capable of depolarizing a cell and boosting the production of action potential, provided it is capable of reaching the threshold of said potential.

On the other hand, an inhibitory synapse is able to hyperpolarize the cell membrane and prevent an action potential from originating, so that they can inhibit the action of an excitatory synapse.

The interaction between two synapses, one excitatory and one inhibitory, -called synapse summation- will depend on the strength that each of them possesses. In this case, the intensity of both synapses being the same, there will be no changes in the membrane potential in the firing zone.

Learn more:

Excitatory and inhibitory postsynaptic potentials brainly.com/question/3521553

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<h2>The Cornea in the ear</h2>

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