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Nata [24]
3 years ago
14

A student measures the range of sound frequencies that the human ear can hear by playing sounds for volunteers between 10 and 30

,000 Hertz and asking them to raise their hand if they were able to hear it. What type of variable is the independent variable in this experiment?
Biology
1 answer:
algol [13]3 years ago
7 0

The independent variable is the sound variable. This is because the independent variables, in this case the sound frequencies, is the ones that is controlled/varied to test its effects on the capacity of the volunteers to perceive the sound. Therefore the volunteers (and their ability to perceive the different sound frequencies) are the dependent variable.

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Alfred Wegener

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These are the main studies/branches of Biology.

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what is the term used to describe the intake of a vitamin or mineral that greatly exceeds the recommended amounts?
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zhuklara [117]

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The advantage of this type of anatomical relationship is that this enables the pituitary to receive signals before sending hormones to the rest of the body through the blood.

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Stress, growth, reproduction, and lactation are just a few of the physiological activities that the anterior pituitary controls.

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Learn more about pituitary gland here brainly.com/question/1372599

#SPJ4

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