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svetoff [14.1K]
3 years ago
13

In addition to heat energy, another product of fires is dangerous smoke and other chemicals. this fact is the reason for a _____

___ ________ in a furnace.
a.heat exchanger
b.stock exchanger
c.heat stabilizer
d.catalytic converter
Biology
1 answer:
jeka57 [31]3 years ago
3 0
The correct answer is D: catalytic converter. A catalytic converter is a device which reduces the effects of exhaust emissions. The catalytic converter converts toxic gasses in the released smoke or exhaust into less toxic pollutants using a catalyzing redox reaction. Catalytic converters have commonly been used in internal combustion engines and <span>furnaces</span>.
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Autonomic dysreflexia is related to spinal cord injury and involves activation of the sympathetic nervous system.
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Autonomic dysreflexia is a syndrome in which there is a sudden onset of excessively high blood pressure. It is more common in people with spinal cord injuries that involve the thoracic nerves of the spine or above (T6 or above).Answer:

Explanation:

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2 years ago
On a tour of African countries, Mark contracts a bad case of traveler's diarrhea. Because he can't eat very much, his body start
melomori [17]
<h2>e) option is correct </h2>

Explanation:

Traveler's diarrhea is an intestinal infection that occurs as a result of eating or drinking contaminated food or water, food handlers who do not wash their hands after they use the bathroom can transmit the infection to people who consume the contaminated food

Due to diarrhea, kidney don't work properly and level of urea increases in blood

Due to the low carbohydrate intake, ketosis occurs in which stored fat is metabolized which results in build up of acids called ketones

If the body starts to use energy sources other than carbohydrates then it means it is using the stored energy, gluconeogenesis fulfills glucose requirement of cell by synthesis of glucose from non carbohydrate material

To supply with energy lipid metabolism occurs, fatty acids are oxidized and energy in the form of ATP is produced

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3 years ago
Cellular respiration :_______.
yKpoI14uk [10]

Answer:

c

Explanation:

glucose is been oxidized while oxygen is reduced to water

7 0
2 years ago
A cat standing near a pond looking at the fish in water. Which of the following statement is correct?
salantis [7]

Answer:

The fish appears nearer to the cat than it really is

Explanation:

The situation above is related to the refraction of light. The cat will think that the fish is closer to him, however, it is actually at a<u> different depth</u> in its<em> actual position</em>. This is because of the refraction of light as it travels in two different mediums: <em>water and air.</em> The eyes and brains are<u> not capable of tracing the light rays' refraction,</u> thus, the cat's image of the fish is on a shallower depth. In reality, the light rays reflecting from the fish are actually being refracted on the water's surface.

8 0
2 years ago
Correctly identify each of these definitions or examples as either depolarization or hyperpolarization of the plasma membrane. 1
natulia [17]

Answer:

  1. hyperpolarization
  2. depolarization
  3. hyperpolarization
  4. depolarization
  5. hyperpolarization
  6. depolarization
  7. depolarization

Explanation:

The resting membrane potential is balanced by ion leakage and ion pumping, to get an electrical signal started the membrane potential has to lose its balance. This starts with a membrane channel opening for Na+ since Na+ concentration is higher outside the cell, ions will rush into the cell. This will change the relative voltage inside the cell. The resting potential has a voltage of -70 mV, the sodium cation entering the cell cause it to become less negative. <em>This is known as depolarization.</em>

The concentration gradient for Na+ will continue to enter the cell making the voltage to become positive reaching +30 mV. At the same time, this happens, other voltage-gated channels are also opening, a concentration gradient acts on K+, as well, as it leaves the cell, it takes a positive charge with it making the membrane potential to move back to its resting voltage of -70 mV. <em>This is called repolarization. </em>

For potassium ions to reach equilibrium the membrane voltage needs to be below -70 mV, this leads to a period of <em>hyperpolarization</em> that occurs while the K+ channels are open.

I annexed an image that illustrates this action potential process.

<em>Considering the information given during depolarization there's an increase in the number of sodium leak channels (7) making the inside of the cell more positive (2) increase in the membrane potential (4), this also implies a decrease in the extracellular concentration of potassium (6)</em>

<em>Meanwhile, during hyperpolarization an increase in the extracellular concentration of potassium (3) decreases the membrane potential (1) making the inside of the cell more negative (5).</em>

I hope you find this information useful and interesting! Good luck!<em>       </em>

4 0
3 years ago
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