| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.77 |
| Score | 0% | 75% |
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
spiny |
|
vertebrate |
|
sentient |
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arthropod |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
What part of the nervous system controls simple reflexes?
autonomic |
|
spinal cord |
|
medulla |
|
cerebrum |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
small intestine |
|
large intestine |
|
stomach |
|
mouth |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Which of the following is not a base unit in the metric system?
gram |
|
meter |
|
degree Fahrenheit |
|
liter |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.
In cell biology, the primary difference between anaerobic and aerobic respiration is that aerobic respiration requires:
mitochondria |
|
oxygen |
|
sugar |
|
water |
Some plant cells produce their own energy through photosynthesis which is the process by which sunlight, carbon dioxide, and water react to make sugar and oxygen. Animal cells cannot produce their own energy and, instead, generate energy when mitochondria consume outside sugar and oxygen through aerobic respiration.