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Irina-Kira [14]
4 years ago
13

Which of the following is a controllable risk factor of infectious diseases?

Health
1 answer:
Kazeer [188]4 years ago
7 0
I believe the answer is A. Drug Abuse. :)
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"how does the brain change with age"-mental health
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Based on your ages it goes interns of what you know, how your body operates, and memory.
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In living a healthy life, a person can weigh posible outcomes of decisions using “H.E.L.P”What word represents each letter and w
Viefleur [7K]

Answer:

H.E.L.P stands for, "Health, Education, Labor, and Pensions.

Explanation:

This can be remembered by repeating, "Help Health Education Labor and pensions" over and over, writing it down several times, or setting reminders on your pc of what it stands for.

EDIT:

All defs come from google dictionary

Health: The state of being free from illness or injury.

Education: a body of knowledge acquired while being educated.

Labor: work, especially hard physical work.

Pensions: a regular payment made during a person's retirement from an investment fund to which that person or their employer has contributed during their working life.

4 0
4 years ago
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Explain signal transduction (changing from a chemical signal to a nerve impulse) for the sense of smell.
QveST [7]

Odorous molecules are perceived by the human olfactory system. This system is defined as the mechanism allowing humans to perceive different smells.

First, the very light odorous molecules are introduced into the nasal cavity; and the decoding begins.

This transduction begins when odorants bind to specific receptors on the outer side of the eyelashes: this linkage can be done directly or via mucus G proteins that bind the molecules and transport them to the receptor neurons located on the eyelash membrane. In this association, a G protein found in the receptors is released. It activates an adenylyl cyclase to produce cyclic AMP (cAMP). In turn, cAMP acts and opens a channel allowing molecules of Na + and Ca 2+ that depolarize the neuron (depolarization = association of electric charges in a body under the influence of an electric field). Thus the increase of Ca 2+ causes the opening of a second channel: Cl - channel, which contributes to most of the depolarization forming the receptor potential. This depolarization amplified by a current Cl- activated by calcium (Ca 2+) extends passively from the eyelashes to the region of the axonal cone (= constant extension of the nerve cell which will allow the transmission of the information to the bulb) of the neuron where the emission of action potentials is transmitted to the olfactory bulb. The information carried by the neuron after depolarization is decoded by this axonal cone.

Once these olfactory signals come out of the epithelium, the axons (= extensions) of the receptor cells gather and form a multitude of bundles that together make up the olfactory nerve. This nerve is defined as the junction between the entire mucus, epithelium and axonal cone, and the olfactory bulb. This bulb is essentially characterized by the presence of glomeruli forming a mass of nerve tissue capable of receiving the primary information from the cone.

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3 years ago
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Which of the following components should a fire escape plan include?
marishachu [46]
Some major components include:
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