Practice problem
by Gustavo A. Rios
What best describes the relationship between the Goby fish and the Pistol shrimp?
(+/0)(+/0)(+/0)
(−/−)(-/-)(−/−)
(+/−)(+/-)(+/−)
(+/+)(+/+)(+/+)
Type a concept, like “slope” or “photosynthesis”.