Question

name date page 2 organism interactions within ecosystems keep going! answer the questions below. 4. in the atlantic ocean, a remora fish uses a sucker - like organ on the top of its head to attach itself to a shark. the remora fish then eats scraps of food dropped by the shark, as well as parasites on the sharks skin and mouth. the shark in turn provides protection for remora fish and transports them around the ocean. a what type of interaction is described between a shark and a remora fish? circle the correct answer. competitive predatory mutually beneficial b explain your reasoning. 5. when an old oak tree in a deciduous forest dies and falls to the ground, young tree seedlings race to fill in the gap in the canopy. once the gap is filled, the other seedlings cant get sufficient sunlight. a what type of interaction is described between young tree seedlings? circle the correct answer. competitive predatory mutually beneficial b explain your reasoning. 6. a blue whale captures krill by opening its mouth and straining enormous volumes of water through bristle - like structures called baleen plates. the largest blue whales can consume up to 6 tons of krill a day! a what type of interaction is described between blue whales and krill? circle the correct answer. competitive predatory mutually beneficial b explain your reasoning. 7. during breeding season, a male northern cardinal marks his territory with song. he chases off other males entering his territory to prevent them from mating with the same female or taking his resources. a what type of interaction is described between male cardinals? circle the correct answer. competitive predatory mutually beneficial b explain your reasoning. find worksheets, games, lessons & more at education.com/resources

Explanation:

• Question 4a: The interaction is mutually beneficial. The remora fish gets food (scraps and parasites) and protection/transport, while the shark gets its skin and mouth cleaned (from parasites).
• Question 5a: The interaction is competitive. Young tree seedlings are competing for sunlight (a resource) to fill the canopy gap.
• Question 6a: The interaction is predatory. The blue whale is consuming (preying on) krill as its food source.
• Question 7a: The interaction is competitive. Male cardinals are competing for mates (same female) and resources (within the territory).

Answer:

• 4a. Mutually Beneficial
• 5a. Competitive
• 6a. Predatory
• 7a. Competitive