| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.69 |
| Score | 0% | 74% |
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
decrease, stabilize |
|
stabilize, raise |
|
decrease, raise |
|
raise, decrease |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
__________ and __________ pair to strengthen bones.
calcium, vitamin A |
|
vitamin D, magnesium |
|
vitamin D, calcium |
|
iron, calcium |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
Heat is always transferred from __________ to __________ environments.
dense, empty |
|
warmer, cooler |
|
cooler, warmer |
|
empty, dense |
Heat is always transferred from warmer to cooler environments and conduction is the simplest way this transfer can occur. It is accomplished through direct contact between materials and materials like metals that transfer heat efficiently are called conductors while those that conduct heat poorly, such as plastic, are called insulators.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
electron |
|
proton |
|
atom |
|
neutron |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
The gravitational interaction of Earth and the Moon is responsible for which of these?
the northern lights |
|
seasons |
|
day and night cycle |
|
tides |
Tides are caused by the gravitational interaction of Earth and the Moon.