| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.03 |
| Score | 0% | 61% |
Which of the following members of the food chain are most alike?
primary consumers and omnivores |
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herbivores and autotrophs |
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producers and tertiary consumers |
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scavengers and decomposers |
Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.
Tough fibrous cords of connective tissue that connect muscles to the skeleton are called:
ligaments |
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tendons |
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vertebra |
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cartilage |
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).
When the clouds become too saturated with water, the water is released as precipitation in the form of:
snow or ice |
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rain |
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ice |
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snow |
Rising into the atmosphere, the water condenses into clouds. When the clouds become too saturated with water, the water is released as snow or ice precipitation which may warm as it falls to reach Earth as rain.
As a cold front moves into an area, the heavier cool air __________ the lighter warm air that it is replacing.
pushes under |
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pushes above |
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mixes with |
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cancels out |
A cold front is a warm-cold air boundary with the colder air replacing the warmer. As a cold front moves into an area, the heavier cool air pushes under the lighter warm air that it is replacing. The warm air becomes cooler as it rises and, if the rising air is humid enough, the water vapor it contains will condense into clouds and precipitation may fall.
Changes to an object's speed or direction of motion are caused by which of the following?
power |
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a force |
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kinetic energy |
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work |
Force is applied to change an object's speed or direction of motion.