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Test: 5th Grade Science
| 1. | The saguaro cactus has adapted in numerous ways to protect the water that it collects during rare rainstorms in the desert. It has a vast root system that allows the plant to absorb water near the surface during rainfall. It also has thorns that deter thirsty animals from getting inside the stem of the cactus and drinking its water. The saguaro cactus also has a very thick, barrel-shaped stem used for holding water. Plants that are adapted to these dry places like the saguaro cactus, are called xerophytes. They must collect, store, and conserve large amounts of water to grow and flourish in this harsh environment. Which claim below does this passage support? |
None of these claims are supported by the passage.
Some plants need water. The cactus has adapted to like without water and only requires a tiny amount.
All plants, even cacti, need water to survive and will adapt new ways to find and keep it.
Water is an important resource for plants that live in desert environments. Plants in areas of rainfall do not depend on water.
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