| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.27 |
| Score | 0% | 65% |
Neurons are part of the __________ nervous system.
peripheral |
|
autonomic |
|
somatic |
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central |
The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.
__________ is caused by a lack of Vitamin C.
diabetes |
|
shingles |
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anemia |
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scurvy |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
Which of the following is the smallest component of an element that still retains the properties of the element?
atom |
|
molecule |
|
neutron |
|
element |
An atom is the smallest component of an element that still retains the properties of the element.
This skeletal system is common in arthropods like insects, spiders, and crustaceans.
bone |
|
endoskeleton |
|
vertebrate |
|
exoskeleton |
An exoskeleton (external skeleton) is common in arthropods like insects, spiders, and crustaceans.
Which of the following is the correct order for types of radiation from lowest to highest frequency?
visible light → ultraviolet light → radio waves |
|
radio waves → visible light → gamma rays |
|
infrared waves → microwaves → ultraviolet light |
|
microwaves → radio waves → visible light |
The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation. From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.