The Hidden World of Plant Intelligence

Who conducted experiments on plants that led to the idea they might possess sentience?

• Charles Darwin

• Cleve Baxter

• Albert Einstein

• Isaac Newton

What ability allows plants to sense their position in space?

• Proprioception

• Photoperiodism

• Gravitropism

• Phototropism

Which scientist showed that gravity sensing cells are located in the tip of the root?

• Gregor Mendel

• Cleve Baxter

• Louis Pasteur

• Charles Darwin

What is the term for plants growing towards light?

• Phototropism

• Hydrotropism

• Geotropism

• Thigmotropism

What gas acts as a ripening hormone in plants?

• Ethylene

• Oxygen

• Nitrogen

• Carbon Dioxide

How do plants measure the change of seasons?

• By the temperature

• By the soil nutrients

• By the amount of rainfall

• By the photoperiod

What do injured leaves release that warns other parts of the plant of danger?

• Carbon dioxide

• Water vapor

• Volatile chemicals

• Oxygen

What is the sensitive plant known for?

• Changing colors with seasons

• Producing a lot of oxygen

• Folding up when touched

• Growing towards light

What did ancient Egyptians use to ripen their figs?

• Water

• Sunlight

• Cutting them open

• Burying them underground

What did Charles Darwin test in plants?

• Their growth in different soils

• Their bending towards light

• Their reaction to being cut

• Their ability to produce oxygen