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sdas [7]
3 years ago
10

In the heart, an action potential originates in the __________.

Biology
1 answer:
jeka57 [31]3 years ago
3 0

Answer:

sinoatrial (SA) node

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If a planet in our solar system is a gas giant planet it is near the sun. If a planet in our solar system is a gas giant planet
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Answer: I think it's If a planet in our solar system is a gas giant planet it is far from the sun

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Jim makes an electromagnet by wrapping a copper wire around a nail and then connecting it to a battery. If he brings the end of
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Suppose that an adult black bear adds 50 pounds of fat in order to survive while hibernating through the winter. how much glycog
NemiM [27]

Answer: The correct answer would be 112.5 pounds

Explanation:

Let us first covert the pound into grams. We know that 1 pound is equal to 453.59 grams.

Thus, 50 pound of fat = 50 x 453.59 = 22,679.5 grams.

We know that, 1 gram of fat releases 9 Kcal of energy. Thus, total energy produced by 22679.5 grams = 9 x 22679.5 = 204,115.5 Kcal

Glycogen is carbohydrate thus, it will produce 4 Kcal of energy per gram.

Thus, 4 x C = 204,115.5 (where C is the grams of glycogen)

⇒ C = \frac{204115.5}{4}

⇒ C = 51,028.875 grams

Using 1 pound = 453.59 grams, we con convert 51,028.875 grams into pounds:

453.59 = 1

1 = \frac{1}{453.59}

51,028.875 = \frac{1}{453.59} x 51028.875

= 112.5 pounds

Thus, 112.5 pound of glycogen would be needed to produce the same amount of energy as produced by 50 pounds of fat.

8 0
3 years ago
How does energy drive the cycling of matter through different geological processes?<br><br>​
Evgesh-ka [11]

Answer:

Here is the link to answer

Explanation:

bit. ly/3a8Nt8n

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What would happen to the limpet population if the mussel were to die out due to a disease?
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The whelk population would likely increase since there would be more mussels and limpets available due to the decrease in crabs.

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