Chapter 19. Chapter 19: Plants Respond to Their Environments

Review & Rehearse
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You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Review the visual summaries and answer the essay questions below.

Make sure to enter a brief response that completely answers each question and explains your reasoning. When you click "Submit," you will be provided instant feedback, allowing you to check if your response is correct.

(This activity contains 11 total essay questions. Each new question will be revealed once you complete the preceding question.)

1.

1. Describe two defenses that have evolved in plants to help combat predators.

Plants have both physical and chemical defenses to ward off predation. Physical defenses include thorns, spines, and hairs. Chemical defenses include various toxins that make a plant distasteful or poisonous to predators.

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