Why are zebra mussels a problem in the Great Lakes but not in the lakes systems where they came from?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

The term equestrian relates to which animal? bulls cows horses pigs