| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
Which of the following states of matter exists at the lowest temperature?
solid |
|
liquid |
|
none of these |
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gas |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
In the classification of life, bacteria, archaea and eukaryota are which of the following?
kingdoms |
|
species |
|
domains |
|
classes |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
Which of these digestive enzymes is not produced by the pancreas?
pancreatic amylase |
|
lipase |
|
trypsin |
|
gastric acid |
The acids produced by the pancreas contain several enzymes that aid in digestion. Lipase converts fat to glycerol and fatty acids. Pancreatic amylase breaks down complex carbohydrates into simple sugars. Trypsin converts polypeptides (the building blocks of protein) into amino acids.
Examples of tertiary consumers include:
cows |
|
sharks |
|
fish |
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chickens |
Tertiary consumers eat primary consumers and secondary consumers and are typically carnivorous predators. Tertiary consumers may also be omnivores. Examples include wolves, sharks, and human beings.
Earth's history is divided into time periods, which of these is the longest time period?
epoch |
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era |
|
age |
|
eon |
The Earth is approximately 4.6 billion years old and its history is divided into time periods based on the events that took place and the forms of life that were dominant during those periods. The largest graduation of time is the eon and each eon is subdivided into eras, eras into periods, periods into epochs, and epochs into ages.