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3 years ago

11

What is Orthocoronavirinae?

1 answer:

Nastasia [14]3 years ago

6 0

The term "orthocoronavirinae" represents a "sub-family" of the coronaviruses. All coronaviruses share the characteristic of being RNA viruses- they are made up of small particles of genetic material called ribonucleic acid. They are also surrounded by a "fatty protein coat" and depend on the organisms they infect (hosts) for their very survival.

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Most plants and all animals depend on _____ to meet their need for nitrogen.

kirill115 [55]

They depend on nitrogen-fixing bacteria, which convert atmospheric nitrogen into a usable form.

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3 years ago

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Which equations are in standard form? Check all that apply

aliya0001 [1]

Answer:

2x+3y=-6

4x+3y=12

3x-y=5

5x+3y=1

Explanation:

standard form: ax + by = C

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3 years ago

Created from the ...... of ..... in layers over long periods of time

Setler79 [48]

Sedimentary rocks. Not sure though

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3 years ago

The air inside a hot-air balloon is heated to 59.00 °C (Tinitial) and then cools to 39.00 °C (Tfinal). By what percentage does t

Mama L [17]

Answer:

6.1%

Explanation:

Assuming pressure inside balloon remains constant during the temperature change.

Therefore, as per Charles' law at constant pressure,

$\frac{V_1}{T_1} =\frac{V_2}{T_2}$

$T_2=39\°\ C=39+273=312\ K$

$T_1=59°\ C=273+59=332\ K$

$V_2=V_1\times \frac{T_2}{T_1} \\=V_1\times\frac{312}{332}\\=0.939V_1$

Percentage change in volume

$\%\ change\ in\ volume=\frac{V_1-0.939V_1}{V_1} \times 100\\=6.1\%$

Change in volume of the balloon is 6.1%

4 0

3 years ago

1. Which of the following compounds is most likely to exist as a covalent molecule? O NaBr O KNO, O Bel, C O CH_NH2?

DIA [1.3K]

Answer:

nabeo

Explanation:

6 0

3 years ago