| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
Heredity is the passing on of physical or mental characteristics genetically from one __________ to another.
species |
|
cell |
|
family |
|
generation |
Heredity is the passing on of physical or mental characteristics genetically from one generation to another. Heredity is made possible via large strings of chromosomes which carry information encoded in genes.
Meteoroids, meteors and meteorites are categorized based on which of the following?
their density |
|
their location |
|
their size |
|
their temperature |
Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.
Molecules and atoms that are inputs to a chemical reaction are known as which of the following?
components |
|
products |
|
fuel |
|
reactants |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
raise, decrease |
|
decrease, stabilize |
|
stabilize, raise |
|
decrease, raise |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
In the classification of life, which of the following is not a domain?
archaea |
|
eukaryota |
|
animalia |
|
bacteria |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.