Question

question 8
which of the following is not an example of a plant or animal using a physical trait to protect against dehydration?
a. a plant draws water from the soil through its root system
b. a penguin uses its waterproof feathers to go for a swim
c. a camel drinks over 100 l of water and stores it in its hump
d. a cactus uses water stored in its thick stem during an unusually long summer

Explanation:

• Option A: This is a process of acquiring water, not a physical trait that prevents water loss (dehydration).
• Option B: Waterproof feathers are a physical trait that stops water loss/keeps water out, preventing dehydration.
• Option C: The camel's hump (a physical trait) stores water to avoid dehydration.
• Option D: The cactus's thick stem (physical trait) stores water to prevent dehydration during dry periods.

Answer:

A. a plant draws water from the soil through its root system