Bio Exam 2 Pearson Questions with 100% Correct Solutions

Bio Exam 2 Pearson Questions with 100% Correct Solutions When sea otters became extremely rare on the California coast, their usual prey (sea urchins) became overabundant and consumed most of the kelp that was the principal habitat for a diversity of fishes and invertebrates. Which statement best describes this situation? - Correct Answer️️ -Sea otters are a keystone species. When goats were introduced into an island off the California coast, they lived in the same areas and ate the same plants as the native deer. The deer population subsequently dwindled and finally disappeared. This is an example of __________. - Correct Answer️️ -Competition A pathogen is an organism that lives in, and causes disease in, its host. Which is the correct relationship between a pathogen and its host? - Correct Answer️️ -Parasitism What happens when a keystone species is removed from a community? - Correct Answer️️ -The community could collapse An ecological relationship in which an animal is hunted, captured, and killed is known as __________. - Correct Answer️️ -Predation Which interaction does not belong in the +/− category of interactions between species? - Correct Answer️️ -pollination Different species of insect-eating birds in a forest will hunt for their prey in different parts of the same tree. For example, Myrtle Warblers hunt for insects at the lower levels of a tree, whereas Cape May Warblers hunt for insects at the top of the tree. What doesSMART PDF hunting for insects in different parts of the tree accomplish? - Correct Answer️️ -It reduces interspecific competition and allows coexistence of multiple species. What is a climax community? - Correct Answer️️ -The stable community achieved at the end of the process of succession Which of the following is true about a keystone species? - Correct Answer️️ -It has a strong impact on the community, far out of proportion to its abundance Which type of organism weakens, but does not kill, another organism by taking water and nutrients from that organism? - Correct Answer️️ -Parasites Although most competition is subtle, under which of the following circumstances would interspecific competition be most obvious? - Correct Answer️️ -When a foreign organism is first introduced into a community Which of the following statements describes a response of predators to prey? - Correct Answer️️ -A species of fish hides in a hole until another fish swims past that it can attack and eat. The giant green sea anemone of the Pacific Northwest coast consists of a cnidarian and alga. The alga performs photosynthesis and shares some of its carbohydrates with the cnidarian. The cnidarian provides the alga with some carbon dioxide and ammonia. This is an example of __________. - Correct Answer️️ -mutualism Communities undergoing primary succession are __________. - Correct Answer️️ - started from bare rock A relationship in which both actors may (potentially) be harmed (-/-) is known as __________. - Correct Answer️️ -CompetitionSMART PDF Which event would not be considered secondary succession? - Correct Answer️️ -A landslide causes the removal of the soil and the organisms that live in the area, leaving only exposed rock. Which of the following is not a response to interspecific competition? - Correct Answer️️ -All of these options are possible responses to interspecific competition. When a relationship between species A and species B is described as mutualism, this means that __________. - Correct Answer️️ -both species benefit After a glacier melts, over time, the area may become covered by shru