AP BIOLOGY

Detailed explanation-1: -Plants can live without humans, but humans cannot live without plants. As the earth was formed, first came bacteria, fungi, and other single cell organisms, including algae, followed by plants which emerged and evolved on the planet long before humans and other animals appeared.

Detailed explanation-2: -Answer: Absolutely true. Some animals like cats will perish without humans. But humans can’t live without plants.

Detailed explanation-3: -Without plants, animals would have no oxygen to breathe and would die. People also depend on plants for food. All animals eat either plants or plant-eating animals. Without plants there would be no food to eat!

Detailed explanation-4: -Plants are necessary for animals for food and shelter. Air is important for atmosphere and oxygen is important for breathing.