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mr_godi [17]
3 years ago
10

The scientific explanation that suggests the universe is expanding relies on two main concepts

Biology
1 answer:
laiz [17]3 years ago
4 0
Doppler effect and redshift as the light coming from stars from the distance can be shifted in the same way as a pitch of sound does
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The hormone , which is secreted by the pineal gland, influences the sleep–wakefulness cycles.
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The hormone described above is the hormone Melatonin.
Melatonin is a hormone secreted by the pineal gland in the brain, which helps regulate other hormones and maintains the body's circadian rhythm. This rhythm is an internal 24 hour clock that plays a critical role when we fall asleep and when awake. When it is dark the body releases more melatonin. 
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The telescope I feel like is one of the most important one
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Chapter 3:
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The skeletal and muscular systems are similar because
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The bones of skeletal system serve to protect the body's organs and support the weight of the of the body ,giving the body it's shape

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