| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.64 |
| Score | 0% | 73% |
What is a major difference between the somatic and autonomic nervous systems?
each belongs to a different nervous system |
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one is inherited, the other is learned |
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one controls voluntary activity, one controls involuntary activity |
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one controls thinking, the other controls feeling |
Both are part of the peripheral nervous system. The somatic nervous system sends sensory information to the central nervous system and controls voluntary actions while the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
Elements in the Periodic Table of the Elements are ordered by which of the following?
atomic weight |
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atomic mass |
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atomic number |
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number of electron shells |
The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.
A person's genotype is their genetic makeup and includes:
recessive alleles |
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dominant alleles |
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both dominant and recessive alleles |
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phenotypes |
A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.
During digestion, the kidneys filter substances from the blood. Which of the following is not filtered by the kidneys?
fats |
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water |
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minerals |
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salt |
Chemical waste like excess water, minerals, and salt are filtered from the blood by the kidneys and secreted into the urine. Urine is transported from the kidneys to the bladder through ureters.
The coldest point in the Earth's atmosphere is reached in which atmospheric layer?
stratosphere |
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mesosphere |
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thermosphere |
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troposphere |
In the mesosphere, temperature again drops as altitude increases until the coldest point in the Earth's atmosphere, the mesopause, is reached where temperatures fall to −225 °F (−143 °C).