I WONDER - What Is The Smallest Invertebrate In The World?

Rotifers are tiny invertebrates living in ponds and puddles, invisible to the naked eye, measuring 200 to 500 microns. It takes 20 rotifers to measure a centimeter. Some rotifers live in herds.

What are rotifers primarily classified as?

• Birds

• Aquatic plants

• Tiny invertebrates

• Large mammals

Where do rotifers typically reside?

• Ponds and puddles

• Forests

• Deserts

• Mountains

How long are rotifers typically?

• 2 to 5 centimeters

• 200 to 500 meters

• 200 to 500 microns

• 20 to 50 millimeters

How many rotifers would it take to line up to a centimeter?

• 10

• 100

• 20

• 50

What is a unique social behavior of some rotifers?

• They fly in flocks

• They build nests

• They live in herds like cows

• They hunt in packs