What is the best way to prevent a tape worm infection?
a. wash your hands often
b. wear shoes outside.
c. throughly cook raw meat.
d. get plenty of exercise.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes