Eco and Enviro Unit 3 Assessment

Correct Answer:   Albacore (trolls, pole and lines)  Question 12 5 out of 5 points A small crab lives within the tube made by a marine worm that lives in the seabed. The crab gains a home and protection from predators and benefits from this relationship, but the worm in unharmed. This type of species interaction is called __________. Selected Answer:   commensalism Correct Answer:   commensalism  Question 13 15 out of 15 points Match the term with the impact description from the  Fishing and Farming Methods  webpage in the Required Unit Resources. o Question Correct Match Selected Match Bottom trawls A.   Bycatch is a major problem with this method as well as damage to sensitive seafloor habitats. A.   Bycatch is a major problem with this method as well as damage to sensitive seafloor habitats. Pole and lines F.   Impacts to non-target species are minimal with this method as fishermen can release unwanted marine life. F.   Impacts to non-target species are minimal with this method as fishermen can release unwanted marine life. Purse seines B.   This method often uses fish aggregating devices (FADs) to lure schools of tuna. Bycatch can be a major concern. B.   This method often uses fish aggregating devices (FADs) to lure schools of tuna. Bycatch can be a major concern. Midwater trawls E.   This method herds fish into the net as the gear is towed and damage to seafloor habitats is minimal. E.   This method herds fish into the net as the gear is towed and damage to seafloor habitats is minimal. Gillnets C.   These are net walls that entangle or entrap fish. C.   These are net walls that entangle or entrap fish.  Question 14 9 out of 15 points Match the term with the impact description from the  Fishing and Farming Methods  webpage in the Required Unit Resources. o Question Correct Match Selected Match Bottom culture F.   Used for growing clams, mussels and oysters on the seabed. D.   Involves growing shellfish such as clams, mussels and oysters in ways where they do not touch the ocean floor