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3 years ago

What statement best describes an independent variable?

2 answers:

6 0

Answer : D. The factor that's changed by the experimenter and impacts the dependent variable.

An independent variable is a variable in which you can manipulate or control while the dependent variable depends on the independent variable. An example of an independent variable is the running while the dependent variable is your pulse rate. The pulse rate depends on how fast and how long is the distance of your run. The pulse rate maybe higher and faster if you’ve run quite long and will be close to stable if you only run for a short distance and slow speed.

Travka [436]3 years ago

3 0

An independent variable is the factor that's changed by the experimenter and impacts the dependent variable. (D)

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While le examining a rock surface, you have discovered an interesting new organism. Which of the criteria will allow you to clas

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Answer: something foods you eat can cause you skin another color

Explanation: you body is made of cell

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3 years ago

Describe the experiment, to show that light intensity, water, chlorophyll, and cabondioxide are needed for photosynthesis

lisov135 [29]

Answer:

Is light needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in an opaque box and 1 part in a transparent box (one with light and one without)

3. Test for starch (BEWI)

B. Is carbon dioxide needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in a box with CO2 absorber and 1 part in box with a CO2 provider

3. Test for starch (BEWI)

C. Is chlorophyll needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. Use a variegated leaf

3. Test for starch (BEWI)

B E W I

1. Put leaf in boiling water to destroy the cell membrane and denature enzymes

2. Ethanol in a hot water bath to remove chlorophyll

3. Warm water to soften the leaf

4. Add drops of iodine solution

Explanation:

3 0

2 years ago

What types of plants have fewer than the average number of root hairs?

cestrela7 [59]

Cultivated crops usually have fewer roots such as corn in a moist or wet soil. To have more hair roots needs more air and oxygen helps to make it happen. But a wet soil doesn't help add more roots.

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3 years ago

Are organisms within rainforest food chains are interchangeable?

Ugo [173]

Yes.You can change its inside or outside

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3 years ago

Write the importance of thermometers.

Vladimir [108]

You can check your body temperature it is useful in medical field.

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3 years ago