| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.21 |
| Score | 0% | 64% |
Blood is circulated throughout the body via:
capillaries |
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arterioles |
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aorta |
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veins |
The aorta is the body's largest artery and receives blood from the pulmonary vein via the left ventricle. From there, blood is circulated through the rest of the body through smaller arteries called arterioles that branch out from the heart. Finally, blood is delivered to bodily tissues through capillaries.
In the metric system, what prefix represents 103?
kilo |
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mega |
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milli |
|
centi |
Kilo is the metric system prefix for 103.
In fermentation, what replaces oxygen in anaerobic respiration?
starches |
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lactic acid or alcohol |
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ascorbic acid or peptides |
|
water |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.
Herbivores are __________ that subsist on producers like plants and fungus.
scavengers |
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secondary consumers |
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primary consumers |
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tertiary consumers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
The biosphere consists of which of the following?
all of these |
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hydrosphere |
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lithosphere |
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atmosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).