Kelp Forests Interactive Video

How fast can kelp grow in a single day?

• Up to 2 feet in a single day

• Up to 6 feet in a single day

• Up to 12 meters in a single day

• Up to 4 centimeters in a single day

What type of organism are kelp?

• Plants

• Fungi

• Brown algae

• Animals

What is a key difference between kelp and plants?

• Plants have roots, while kelp have holdfasts

• Plants have leaves, while kelp have blades

• Plants have vascular systems, while kelp do not

• Plants absorb sunlight, while kelp absorb nutrients from the water

What is the primary function of pneumatocysts in kelp?

• To absorb nutrients from the water

• To anchor the kelp to the seafloor

• To help kelp grow upwards towards the surface

• To protect kelp from predators

Which animal helps protect kelp forests by preying on sea urchins?

• Crabs

• Sea otters

• Cormorants

• Starfish