Back to the list of Challenges ... Next Challenge

Science Challenge #34
Challenge Question #1.
Coral in Australia's Great Barrier Reef are less colorful than usual. From 1998 to 2002 observers have noticed a bleaching effect caused by a depletion of the colorful zooxanthellae algae.
What is the suspected reason for the depletion of these symbiotic algae?

 Challenge Question #2.
Chicken pox is caused by the virus Varicella zoster and even after a person has recovered from the disease some of the virus remains dormant in their nervous system.
When a person has had chickenpox do you think it a good or a bad idea for that person to avoid all possible exposure forever afterward?

Select an Answer

Back to list of challenges

Send feedback to
Explorit Science Center
P.O. Box 1288, Davis, CA 95617, USA
Phone: (530)756-0191     Fax: (530)756-1227
Page last updated: August 7, 2006