ECOL1000 Conelly Exam 4 UGA questions and answers with solutions 2025

ECOL1000 Conelly Exam 4 UGA questions and
answers with solutions 2025
Communities which are considered more easily Invaded by exotic species often include each of t
O O O O O O O O O O O O O O



he following characteristics except: - ANSWER They are primarily tropical habitat
O O O O O O O O O O




Each of the following are traits generally associated with successful invasive species except for: -
O O O O O O O O O O O O O O



ANSWER Being at the top of the food chain
O O O O O O O O O




Which one of the following statements is true? -
O O O O O O O O



ANSWER There have never been more species on earth than at the present
O O O O O O O O O O O O O




Why are many of the global biodiversity hotspots around the world located on islands? -
O O O O O O O O O O O O O O



ANSWER Populations of island species are isolated
O O O O O O O




The "Red Queen Hypothesis" can be used to explain: -
O O O O O O O O O



ANSWER Why plants continually evolve new chemical and physical defenses
O O O O O O O O O O




Each of the following is a characteristic, which tends to increase a species risk of extinction exce
O O O O O O O O O O O O O O O O



pt: - ANSWER The species mature quickly
O O O O O O




The greatest threat to a global biodiversity today is: - ANSWER Habitat loss and alteration
O O O O O O O O O O O O O O




Critically endangered species are defined as having: -
O O O O O O O



ANSWER A 50% likelihood of going extinct in 10 years
O O O O O O O O O O




The background or "natural" extinction rate is estimated to be approx.: -
O O O O O O O O O O O



ANSWER 1 species per 10 million species per year
O O O O O O O O O

,Which of the following statements is not true? -
O O O O O O O O



ANSWER California Condors were driven to extinction by human over exploitation
O O O O O O O O O O O




"Biosteel", Invented by Nexia Biotech, is a high-
O O O O O O O



strength product containing spider web that was: -
O O O O O O O



OANSWER Created by genetically modifying goats with genetic material from spiders
O O O O O O O O O O




Compared to genetic modification, selective breeding is generally considered more acceptable b
O O O O O O O O O O O



ecause of each of the following reasons except: -
O O O O O O O O



ANSWER Selective breeding is only done in safe , controlled, laboratory conditions
O O O O O O O O O O O O




Supporters of the icreased use of genetically modified foods argue each of the following except:
O O O O O O O O O O O O O O O



- ANSWER We know pests cannot develop resistance to genetically modified foods
O O O O O O O O O O O




Due to a lucky break it tuned jout that some of the potential environmental threats to Monarch
O O O O O O O O O O O O O O O O O



butterflies, resulting from toxins in "Bt" corn and "Bt" corn pollen, did not materialize because: -
O O O O O O O O O O O O O O O



OANSWER The "Bt" toxin was not expressed in high enough level in the pollen that the Monarch
O O O O O O O O O O O O O O O O O



caterpillars consumed O




Emelliana, single- O



celled photosynthetic plankton floating in the ocean, help reduce global climate change in each
O O O O O O O O O O O O O O



of the following ways except: - ANSWER Increasing ocean acidity, by driving down absorbed CO2
O O O O O O O O O O O O O O




An environment damaging positive feedback loop will likely result from: -
O O O O O O O O O O



ANSWER The release of methane and CO2 from thawing tundra permafrost
O O O O O O O O O O O




Levels of oceanic CO2 concentrations have been increasing in large part because of -
O O O O O O O O O O O O O



OANSWER Increase in levels of atmospheric CO2 released by humans
O O O O O O O O O

, The residents of Kiribati are most concerned about on-going climate change because they -
O O O O O O O O O O O O O



ANSWER Likely will lose their country due to oceanic flooding
O O O O O O O O O O




There is evidence that posion ivy is becoming more toxic to humans. This higher toxicity is attrib
O O O O O O O O O O O O O O O O



uted to - ANSWER Higher levels of atmospheric CO2
O O O O O O O O




We discussed each of the following is a predicted consequence of climate change within Georgia
O O O O O O O O O O O O O O



except for: - ANSWER Increases in agricultural production, due to additional CO2 availability
O O O O O O O O O O O O O




We discussed in class that plants can use the increases in atmospheric CO2 by -
O O O O O O O O O O O O O O



ANSWER Increasing their pollen production
O O O O O




The IPCC working group III report suggested each of the following ways to mitigate the effects of
O O O O O O O O O O O O O O O O



climate change except for: -
O O O O O



ANSWER Wait for new technologies to be invented which will create food more efficiently
O O O O O O O O O O O O O O




In the context of climate warming, each of the following are considered positive forces except fo
O O O O O O O O O O O O O O O



r - ANSWER Increased cloud cover
O O O O O




We are currently beginning to experience each of the following consequences of global climate
O O O O O O O O O O O O O O



change except for: - ANSWER A decrease in toxicity of most plants
O O O O O O O O O O O




"Negative Externalities" are: - O O O



OANSWER Costs paid by those who do not receive the direct benefits of certain actions or practic
O O O O O O O O O O O O O O O O



es



Which of the following statements regarding the Montreal Protocol is false? -
O O O O O O O O O O O



ANSWER Because of its success, the treaty is no longer enforced or recognized
O O O O O O O O O O O O O