2.4 - ECOLOGICAL TOLERANCE Flashcards
1
Q
A recent article on salmon discussed the differing levels of ecological tolerance among the species. The article cited the fish’s adjustment to freshwater after living their adult lives in saltwater, stating that “the more tolerant the salmon were of salinity changes, the more fit the salmon was to reproduce.”
Which of the following conclusions would the research likely agree?
a) The other environmental factors on salmon did not affect the fish.
b) Different species of salmon had different levels of tolerance to salinity changes.
c) The less tolerant salmon remained in the ocean and did not reproduce.
d) A salmon individually could build a tolerance over time to changes in salinity.
A
