| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.24 |
| Score | 0% | 65% |
The __________ nervous system regulates involuntary activity in the heart, stomach, and intestines.
peripheral |
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central |
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autonomic |
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somatic |
Part of the peripheral nervous system, the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
atom |
|
electron |
|
neutron |
|
proton |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
Which of the following is true about species groups?
an ecosystem is a biological population |
|
a community is made up of a group of populations |
|
a population is made up of a group of communities |
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a biome is a made up of a group of biospheres |
A population is a group of organisms of the same species who live in the same area at the same time. A community is a group of populations living and interacting with each other in an area.
Work is measured in:
joules or newton-meters |
|
amps |
|
watts |
|
horsepower |
Work is performed on an object when an applied force causes displacement along the same vector. Measured in joules (J) or newton-meters (Nm), work is calculated by multiplying force times displacement: \(W = \vec{F}\vec{d}\)
Which of the following states of matter exists at the highest temperature?
solid |
|
gas |
|
none of these |
|
liquid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.