WONDER #2628: What Are Marimo Moss Balls?
Question 1 of 3
What do experts think causes marimo moss balls to rise and sink?
- Circadian rhythms
- Both a and c
Question 2 of 3
Which is NOT a threat to marimo moss balls, according to experts?
- Climate change
Question 3 of 3
What was the main idea of this Wonder?
- Many people like to keep marimo moss balls in their aquariums as pets.
- The lakes of the world are full of a wide variety of organisms, many of which are nearly extinct.
- The Ainu people hold a festival called Marimo Matsuri each year to celebrate nature.
- Marimo moss balls are an endangered species currently only found in two freshwater lakes—one in Japan and another in Iceland.
Check your answers online at https://www.wonderopolis.org/wonder/What-Are-Marimo-Moss-Balls.