| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.07 |
| Score | 0% | 61% |
Minerals, vitamins, and fiber are:
carbohydrates |
|
micronutrients |
|
macronutrients |
|
proteins |
Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.
A large naturally occurring community of flora and fauna occupying a major habitat is:
a community |
|
a biome |
|
a food chain |
|
a population |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
The angle of reflection is equal to which the following?
refractive index |
|
angle of incidence |
|
90° |
|
focal point |
The law of reflection specifies how waves, including light waves, bounce off of surfaces. Specifically, the angle of incidence of the approaching wave is equal to the angle of reflection of the reflected wave as measured from a line perpendicular (90°) to the surface.
Within DNA, a variety of a particular gene is called a(n):
allele |
|
heterozygous |
|
homozygous |
|
chromosome |
The gene is the base unit of inheritance and is contained within DNA. A gene may come in several varieties (alleles) and there are a pair of alleles for every gene. If the alleles are alike, a person is homozygous for that gene. If the alleles are different, heterozygous.
Which of the following describes the Earth's mantle?
primarily solid |
|
solid |
|
liquid |
|
primarily liquid |
Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.