Chapter 25: Q 26 (page 668)
Describe at least two challenges that cactuses had to overcome that cattails did not.
Short Answer
Possible challenges include:
- Climate: Deserts are arider than swamps, so there is less humidity in the air and less water in the soil.
- Reproduction: Cactuses are often not densely populated, whereas cattails occur in groups.
- Temperature: During the day, deserts are usually hot, which increases the risk of desiccation. The desert climate will also have broader temperature ranges (extremes).