| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
What kind of weather front is likely to create clouds and storms?
temperate front |
|
cold front |
|
stationary front |
|
warm front |
A warm front is the boundary between warm and cool (or cold) air when the warm air is replacing the cold air. Warm air at the surface pushes above the cool air mass creating clouds and storms.
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
vertebrate |
|
arthropod |
|
spiny |
|
sentient |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
Molecules and atoms that are inputs to a chemical reaction are known as which of the following?
fuel |
|
components |
|
reactants |
|
products |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
In fermentation, what replaces oxygen in anaerobic respiration?
water |
|
lactic acid or alcohol |
|
starches |
|
ascorbic acid or peptides |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.
Blood is created in:
bone marrow |
|
the liver |
|
red blood cells |
|
the heart |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.