| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.00 |
| Score | 0% | 60% |
What part of the food chain serves only as food for other organisms?
primary consumers |
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producers |
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decomposers |
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secondary consumers |
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
In the food chain, omnivores may be which of the following?
secondary or tertiary consumers |
|
primary or secondary consumers |
|
secondary consumers or scavengers |
|
primary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
What is the body's largest artery?
vena cava |
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aorta |
|
capillary |
|
arteriole |
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 cell biology, what part of the cell contains organelles?
nucleus |
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cytoplasm |
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cell membrane |
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cell wall |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles.
Antigens are found on the outside of which blood cells?
platelets |
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plasma |
|
red |
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white |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.