Mass extinction - Study guides, Class notes & Summaries

What is extinction? correct answer: The loss or death of a species What is mass extinction? correct answer: A decline in biodiversity greater than the background extinction rate What is background extinction? correct answer: Background extinction occurs when certain populations are reduced to zero because of normal environment change, emerging disease, predation pressure, or competition with another species How are mass extinctions detected and how many have been detected? correct an...

Natural Event Geological or atmospheric processes involving the release of energy and has nothing to do with people. Geological is due to the hot interior of the Earth and can be expressed as volcanoes. Atmospheric type of energy is the product of solar energy which can be expressed as tornadoes. Characteristics of a Natural Disaster (5) geological, atmospheric, magnitude, frequency, duration, areal extent Recurrence interval time between same sized events (150 years) frequency 1/recurrenc...

Main questions of course - 1. How do humans alter earth 2. how do human alterations affect the biosphere 3. What can be done to alleviate human alterations of the biosphere Greatest ecological impacts of humans(most to least) - 1. Nitrogen fixation 2. Water use 3. Land transformation 4. CO2 concentration rise 5. Ocean acidification 6. Bird extinction 7. Plant invasion Planetary Boundaries - Limits between which global systems must operate to prevent abrupt and irreversible environment...

Test bank for Ecology: The Economy of Nature 9e 9th Edition by Rick Relyea. ISBN-13: 5542 Full Chapters test bank included Chapter 1 An Introduction to Ecology 1.1 Ecological Systems Exist in A Hierarchy of Organization Individuals Populations Communities Ecosystems The Landscape The Biosphere 1.2 Physical and Biological Principles Govern Ecological Systems Conservation of Matter and Energy Dynamic Steady States Evolution 1.3 Different Organisms Play Diverse Roles in Ecological...

What is the origin of the Earth? - Answer-Formed out of a solar nebula What are the origins of Life? - Answer-Archaea - the oldest origin of life on Earth What is kinetic energy? - Answer-The energy of motion What is heat energy? - Answer-Energy created by particles of matter rubbing together What is density? - Answer-A measurement of the amount of matter in a given volume of something. (mass per unit volume) What is convection? - Answer-Transfer of heat through currents caused by differen...

Biodiversity correct answers variability of organisms on earth, generated by evolution through the process speciation Speciation correct answers the formation of a new species species richness correct answers number of species that were or are on earth, Ancient vs current Genetic Variation correct answers Study one species and variation within or between all species Bilogoney Bilogoney correct answers way to organize variation and living things Community composition correct answe...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

BIO 182 ASU Final Exam – All Verified Questions & Answers (100% Accurate) BIO 182 ASU Final Exam – All Verified Questions & Answers (100% Accurate) What is extinction? - ANSWER - The loss or death of a species What is mass extinction? - ANSWER - A decline in biodiversity greater than the background extinction rate What is background extinction? - ANSWER - Background extinction occurs when certain populations are reduced to zero because of normal environment change, emerging disease...

Science Bowl Ultimate Study Guide Earth/Space Latest 2024 Graded A+ Short Answer Lightning is most likely to occur at what time of day: morning, afternoon, evening, or night? ANSWER: AFTERNOON Multiple Choice Which of the following will NOT result from variations in the Moon's orbital plane with respect to the Earth? W) The Moon will continue to cause solar eclipses X) The Moon will pass over the Earth's North Pole Y) There will continue to be lunar eclipses Z) The apparent path...

GLGY 301 FINAL UPDATED Actual Exam Questions and CORRECT Answers Who was the first to describe the phenomenon of extinction and when - CORRECT ANSWER- georges cuvier in 1796 what are the two types of extinction - CORRECT ANSWER- normal background and mass extinction what is normal background extinction - CORRECT ANSWER- extinction rates less than or equal to the rate of speciation over time

Biodiversity correct answers Describes variability of organisms Generated by evolution through speciation How is Biodiversity Measured? correct answers Species richness: # species in given area Genetic Variation: different versions of genes in species Community Comp: types of interactions (prey/predator) Ecosystem Diversity: how species interact with nonliving environment How is Biodiversity Organized? correct answers Time: when first evolved Taxonomy: naming/organizational sy...