SOLUTIONS
Bone is composed primarily of which inorganic material?
a. calcium
b. phosphorus
c. collagen
d. potassium - CORRECT ANSWER -Calcium
Calcium is the most abundant mineral found in bones, as well as in the entire body.
Which of these is a biome?
a. desert
b. cornfield
c. hear of bison
d. beehive - CORRECT ANSWER -Desert
A biome is a large ecological community that includes specific plants and animals, such as a desert.
Which planet orbits closest to Earth?
a. Mercury
b. Venus
, c. Jupiter
d. Saturn - CORRECT ANSWER -Venus
Venus's orbit is closest to Earth. Venus is the second planet from the sun, and Earth is the third planet
from the sun.
What is the name of the phenomenon when a star suddenly increases in brightness and then disappears
from view?
a. aurora
b. galaxy
c. black hole
d. supernova - CORRECT ANSWER -Supernova
Before a star collapses, the star burns brighter for a period of time and then fades before view. This is a
supernova.
Which organism has cells that contain mitochondria?
a. whale
b. mushroom
c. tulip
d. all of the above - CORRECT ANSWER -All of the above
Plant, animal, and fungi cells have mitochondria.
Isotopes of an element will have the same number of _______ and different numbers of ________?