BIO-101 FINAL EXAM UH MANOA PRACTICE QUESTIONS AND ANSWERS

BIO-101 FINAL EXAM UH MANOA PRACTICE QUESTIONS AND ANSWERS Why are invasive species successful in new environments? - Answer️️ - Isolation leaves "open niches", lack of predators. Opportunities for invasion: are ocean, wind, bird migration, human introduction. Examples of invasive species: brown tree snakes, erthrina gall wasp, coqui frog, What is a naturalized plant? - Answer️️ -They reproduce in the wild and become established in the ecosystem Why is Hawaii especially at risk from invasive species? - Answer️️ -10 million tourists annually; international port (80% for consumed goods). few competitors and predators isolation leaves open niches lots of opportunities for invasive introduction What is the most common way alien plants are introduced to Hawaii today? - Answer️️ -mass transportation by ships & airplanes (accidental & deliberate) What is an invasive species? - Answer️️ -Alien (non-native) species that adversely affects the habitat they invade environmentally, economically, or ecologically, a species that did not get there naturally or evolve there. ©SOPHIABENNETT@ Monday, August 26, 2024 6:09 AM 2 ______ species evolved here or got here naturally and ______ species are introduced from other regions. - Answer️️ -Native, alien (invasive) How are oceans impacted by invasive species? - Answer️️ -Global movement of organisms by shipping & fishery products, Movement associated large storms, Changes diversity & distribution of marine organisms What are traits that make some species invasive? - Answer️️ -Reproduces sexually & asexually, Rapid growth & reprod, High dispersal ability, Tolerance to range of environments, Ability to eat range of food types, Associated with humans Biodiversity is defined as: - Answer️️ -number and variety of organisms found in an area 75% of Hawaii native flowering plant species arrived by: - Answer️️ - Birds 75%, wind 2%, water 23% Globally the greatest cause of species extinction is due to: - Answer️️ - Habitat Destruction Polynesian canoe plants included: - Answer️️ -Kukui, 'ape, 'ulu, wauke, milo (candelnut, elephant ear, breadfruit, paper mulberry, portia tree) There are about _____ native flowering plant species in Hawaii & about 1,000 introduced ones that are now ______. - Answer️️ -1,100, naturalized??????????????????????? ©SOPHIABENNETT@ Monday, August 26, 2024 6:09 AM 3 Native habitats in Hawaii have been lost due to: - Answer️️ -croplands, grazing, Alien animals, urbanization Rats were introduced into Hawaii by: - Answer️️ -Polynesians Native species that are only found in Hawaii are ______ while those found here & elsewhere are ______. - Answer️️ -endemic, indigenous One of the most abundant birds in the US, the _______ became extinct in 1914 as a result of _______. - Answer️️ -passenger pigeon, being fed to slaves & servants. (over hunted) A species that is likely to become endangered in the near future is termed: - Answer️️ -threatened. According to the 2009 IUCN Red List __% of the world's species are threatened for extinction. - Answer️️ -36 What is conservation biology and when did it begin? - Answer️️ -In response to biodiversity crisis, emerged in the 1980's, requires action ta