| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.23 |
| Score | 0% | 65% |
Secondary consumers that also eat producers are known as:
carnivores |
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herbivores |
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omnivores |
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scavengers |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.
Respiration is the process by which __________ absorb oxygen and eliminate carbon dioxide.
diaphragms |
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capillaries |
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bronchioles |
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blood cells |
The respiratory system manages respiration which is the process by which blood cells absorb oxygen and eliminate carbon dioxide.
What part of the food chain serves only as food for other organisms?
secondary consumers |
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decomposers |
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primary consumers |
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producers |
Producers (autotrophs) serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through chemosynthesis
Veins carry blood __________ the heart.
all of these |
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back to |
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away from |
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within |
Veins carry blood back to the heart from the body. While arteries are thick-walled because they carry oxygenated blood at high pressure, veins are comparatively thin-walled as they carry low-pressure deoxygenated blood. Like the heart, veins contain valves to prevent blood backflow.
Large, puffy, mid-altitude clouds with a flat base and a rounded top describe which of the following?
stratus clouds |
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fog |
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cirrus clouds |
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cumulus clouds |
Cumulus clouds are large, puffy, mid-altitude clouds with a flat base and a rounded top. These clouds grow upward and can develop into a cumulonimbus or thunderstorm cloud.