Exploring the Most Dangerous Desert Plants with David Attenborough

Why is the teddy bear choir not considered cuddly?

• It is soft and safe to touch.

• It sings beautiful songs.

• It is the most dangerous plant in the desert.

• It has a thick coating of harmless spines.

Tags

CCSS.RI.2.2

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RL.2.2

CCSS.RL.3.2

What makes the spines of the teddy bear choir so dangerous?

• They emit a pleasant fragrance.

• They are sharp like glass and have backward pointing barbs.

• They change color in the presence of humans.

• They are blunt and easily removable.

Tags

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RL.2.2

CCSS.RL.3.2

CCSS.RL.4.2

How difficult is it to remove the spines once they pierce the skin?

• Somewhat easy with a pair of tweezers.

• Very easy with just fingers.

• Quite hard even with a pair of pliers.

• No need to remove, they dissolve naturally.

What is the primary defense mechanism of the teddy bear choir?

• It sprays a toxic substance.

• It camouflages with the desert environment.

• It uses its spines to pierce predators.

• It can move to avoid predators.

How effective is the teddy bear choir's defense mechanism?

• Not effective; it is easily preyed upon.

• Moderately effective; some animals can bypass it.

• Highly effective; it makes the plant virtually invulnerable.

• Unknown; there is no evidence of its effectiveness.