1. Wilting, turgor pressure, and transpiration are all examples of plant responses. Which best describes why a plant might behave this way? A. The plant is trying to survive by avoiding predators.

B. The plant is attracting pollinators needed for reproduction.

C. The plant is maintaining homeostasis by responding to stimuli.

D. The plant is responding to the availability of food in its environment.

2. What creates the force that enables blood to move through the circulatory system?

A. The lungs

B. The liver

C. The brain

D. The heart