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3 years ago

1. Which of these describes a chemical

Biology

1 answer:

valentina_108 [34]3 years ago

6 0

The answer is c in my opinion

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Identify 3 organ systems found within the human body

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digestive, cardiovascular, respiratory system

Explanation:

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2 years ago

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Next they evaluated the prediction using a specific experimental procedure they collected experimental data by catching mice fro

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Fungus is an organism not drawn in the above food chain although it has a very important role. Describe an important role of org

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Fungi and bacteria are decomposers. This means they help breakdown dead plant and animal matter.

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3 years ago

Select all the correct answers. Blue jays and crows eat caterpillars and mice. If the number of blue jays increases, what are th

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Answer:

there will be less caterpillars , crows, and mice

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2 years ago

A truck travels at an average speed of 70 km/hr. If it travels 100 km in the first hour,

Nookie1986 [14]

Answer:

40km

Explanation:

Average speed can be computed with the equation:

$\bar{s} = \dfrac{total\;distance\;traveled}{Total\;time\;traveling}$

So we know the average speed and one of the distances is already given and we need to know how much it traveled after that. The total time the car traveling is 2 hours. Let's plug that in our equation:

$\dfrac{70km}{hr} = \dfrac{100km + x}{2hours}$

Now let's multiply both sides by 2 hours:

$\dfrac{70km(2hr)}{hr} = 100km + x$

Cancel out the hours and multiply:

$70km(2) = 100km + x$

$140km = 100km + x$

Subtract 100km from both sides of the equation:

$140km - 100km= 100km - 100km + x\\\\40km = x$

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3 years ago