BIO-101 FINAL EXAM UH MANOA | Questions & Answers (100 %Score) Latest
Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions
Why are invasive species successful in new environments? - 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? - They reproduce in the wild and become established in the
ecosystem
Why is Hawaii especially at risk from invasive species? - 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? - mass
transportation by ships & airplanes (accidental & deliberate)
What is an invasive species? - 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.
______ species evolved here or got here naturally and ______ species are introduced
from other regions. - Native, alien (invasive)
How are oceans impacted by invasive species? - 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? - 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: - number and variety of organisms found in an area
75% of Hawaii native flowering plant species arrived by: - Birds 75%, wind 2%, water
23%
Globally the greatest cause of species extinction is due to: - Habitat Destruction
Polynesian canoe plants included: - 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 ______. - 1,100, naturalized???????????????????????
Native habitats in Hawaii have been lost due to: - croplands, grazing, Alien animals,
urbanization
Rats were introduced into Hawaii by: - Polynesians
Native species that are only found in Hawaii are ______ while those found here &
elsewhere are ______. - endemic, indigenous
One of the most abundant birds in the US, the _______ became extinct in 1914 as a
result of _______. - passenger pigeon, being fed to slaves & servants. (over hunted)
A species that is likely to become endangered in the near future is termed: - threatened.
According to the 2009 IUCN Red List __% of the world's species are threatened for
extinction. - 36
What is conservation biology and when did it begin? - In response to biodiversity crisis,
emerged in the 1980's, requires action taken before all data is in
What is likely to become the next greatest environmental problem of this century? -
Impending water crisis
Why is conservation biology described as a "crisis discipline"? - Analogous to study of
AIDS in epidemiology.
The Endangered Species Act was created by: - President Nixon
Listing species as endangered is based upon: - Scientific Information, not economics,
endangered species act
IUCN stands for: - International Union for the Conservation of Nature
Species extinction: - the natural cause of extinction was the asteroid impact 65M years
ago. Can be caused by disease, climate change, and competition
Global warming will adversely affect crop production by: - impacting the crop location &
yield, decreasing productivity
The major Greenhouse gases include: - carbon dioxide, methane, nitrous oxides, CFC,
& halons.
