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True [87]
3 years ago
10

What is the sa node of the heart

Biology
1 answer:
olasank [31]3 years ago
5 0

Its a cluster of cells that are situated in the upper part of the wall of the right atrium.

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How does the suns energy cause a hurricane to form
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The sun heats the land and oceans unevenly, creating areas of upwards and downwards moving air as well as pressure differences. This causes air to flow from one area to another. For hurricanes the sun heats the ocean, causing some water to evaporate. The water vapor powers convection in storms which can then <span>strengthen and organize to form hurricanes. Hope this helps:)

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3 0
3 years ago
Climax communities occur before communities that are undergoing primary succession
slega [8]

Answer:

Answer is C. Climax community is an ecological community that has reached the final stage of ecological succession.

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Use your observations from the lab activity/lab video and the data tables to explain how salinity affects the way cold water fro
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hope this at least helped you :>

7 0
3 years ago
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The mixing of fats with water, assisted by molecules that have both nonpolar and polar ends, is called
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The mixing of fats with water, assisted by molecules that have both nonpolar and polar ends, is called <u>emulsification</u>

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4 0
3 years ago
Which of the following is not an acceptable way to thaw frozen food?
netineya [11]

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Perishable foods should never be thawed on the counter or in hot water and must not be left at room temperature for more than two hours. There are safe ways to thaw food: in the refrigerator, in cold water, and in the microwave.

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3 0
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