| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.59 |
| Score | 0% | 72% |
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
decrease, stabilize |
|
raise, decrease |
|
stabilize, raise |
|
decrease, raise |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
Which of the following is the correct order for types of radiation from longest to shortest wavelength?
radio waves → visible light → gamma rays |
|
infrared waves → microwaves → ultraviolet light |
|
microwaves → radio waves → visible light |
|
visible light → ultraviolet light → radio waves |
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.
__________ is caused by a lack of iron in the diet.
anemia |
|
shingles |
|
diabetes |
|
scurvy |
Anemia, which may cause weakness, dizziness, and headaches is caused by a lack of iron in the diet.
The envelope of gases surrounding the planet is called the:
hydrosphere |
|
geosphere |
|
lithosphere |
|
atmosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).
The __________ nervous system controls voluntary actions.
somatic |
|
autonomic |
|
central |
|
peripheral |
Part of the peripheral nervous system, the somatic nervous system is made up of nerve fibers that send sensory information to the central nervous system and control voluntary actions.