| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
Convert -20C° to F°.
-4 |
|
78 |
|
36 |
|
-36 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(-20) + 32\)
\(F° = {-180 \over 5} + 32\)
\(F° = -36 + 32 = -4\)
Examples of secondary consumers include:
grasshoppers |
|
wolves |
|
chickens |
|
plankton |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
electron |
|
neutron |
|
atom |
|
proton |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
Cirrus clouds are thin, wispy clouds composed of ice crystals. At what elevation to cirrus clouds form?
low-altitude |
|
mid-altitude |
|
high-altitude |
|
ground level |
Cirrus clouds are thin, wispy high-altitude clouds composed of ice crystals that originate from the freezing of supercooled water droplets. Cirrus clouds generally occur in fair weather and point in the direction of air movement at their elevation.
Gametes have how many pairs of chromosomes?
23 |
|
46 |
|
4 |
|
2 |
Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.