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Dima020 [189]
3 years ago
7

Messages inside neurons are transmitted in electrical form. however, messages traveling between neurons utilize chemicals called

Biology
1 answer:
olya-2409 [2.1K]3 years ago
6 0
They are called neurotransmitters. 
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Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis lipids provide cells with more?
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<span>Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis lipids provide cells with more energy. Lipids are the sources of the highest amount of energy, but they are much more difficult to process by our bodies compared to things such as carbs.</span>
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Which of the following accurately describes fermentation? A. All types of fermentation produce carbon dioxide. B. Fermentation c
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4 years ago
A slice of pizza has 500 kcal. If the pizza is burned and its heat is used to warm a 50-L container of cold water, what would be
Vinvika [58]
Given:
The heat content of the pizza is  Q = 500 kcal 
The volume of the cold water is V = 50 L
The mass of a liter of cold water is 1 kg.

Calculate the mass, M,  of cold water.
M = (50 L)*(1 kg/L) = 50 kg 

The specific heat of water is
c = 4.184 kJ/(kg-K)

Also,
1 kcal = 4184 J, therefore
Q = (500 kcal)*(4184 J/kcal) = 2.092 x 10⁶ J

Let ΔT = increase in temperature of the cold water, °C (same as K).
Then
Q = M*c*ΔT
or 
ΔT = Q/(M*c)
\Delta T =  \frac{(2.092 \times 10^{6} J)}{(50 \, kg)(4.184 \times 10^{3} \,  \frac{J}{kg-K)}) } =10 \,K=10 \,^{o}C

Answer: The temperature increases by 10 °C (or 10 K)
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How do the small intestines aid in the digestion process?
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3 0
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Which part of the model shows carbon moving from the biosphere to the atmosphere? The sheep takin in nutrients, the death of the
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Answer:

Sheep carrying out respiration

Explanation:

Because the sheep is exhaling carbon dioxide into the air

5 0
3 years ago
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