Mass extinction Study guides, Class notes & Summaries

BIO 182 ASU EXAM WITH GUARANTEED CORRECT ANSWERS What is extinction? - correct answersThe loss or death of a species What is mass extinction? - correct answersA decline in biodiversity greater than the background extinction rate What is background extinction? - correct answersBackground 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 ...

Marine Science Final Exam: 8.1, 8.2, The Cove Questions & Answers 2024/2025 (Terms - 8.1) Ecology - ANSWERSEcology is the study of organisms and their environments, including their interactions and their distribution within the environment. Environment - ANSWERSThe sum of conditions affecting an organism, including all living and nonliving things in an area, such as plants, animals, water, soil, weather, landforms, and air. Keystone Species - ANSWERSAn organism that has a great eff...

Precambrian correct answers 4.5 bya-542 mya Hadean (before life), Archeon (ended with photosynthesis), Proterozoic (eukaryotes) origin of life 3.8 bya photosynthesis 2.7 bya eukaryotes 1.5 bya multicellularity 1 bya Land masses spread apart Paleozic correct answers 542 mya- 251 mya Cambrian, Ordovician, Silurian, Devonian, Carboniforous, Permian vascular plants, land animals 420 mya Mesozoic correct answers 251 mya- 65 mya Triassic, Jurassic, Cretaceous mammals 200 mya flowering...

sci 225 exam 2 The three orbital parameters of eccentricity, obliquity, and precession are collectively known as cycles named after this scientist. - correct answer Milutin Milenkovic Name the orbital parameter movement is similar to the movement of a spinning top. - correct answer Precession (Wobble) This orbital parameter changes on a time scale of 41,000 years - correct answer Obliquity (tilt) Interglacial periods seem to align with what amount of tilt of Earth's axis: higher tilt ...

Chapter 03 - Natural Selection, Speciation, and Extinction Multiple Choice Questions Chapter 03 Natural Selection, Speciation, and Extinction 1. What is not a recognized pattern of natural selection? A. Directional B. Stabilizing C. Evolutionary D. Balancing E. Disruptive Bloom's Level: 1. Remember Learning Outcome: 03.01 Topic: Evolutionary Ecology 2. The change in color of peppered moths in polluted areas is an example of which pattern of natural selection? A. Directional B. Stabili...

Science Bowl Ultimate Study Guide Earth/Space Exam Questions With Verified And Updated Answers Short Answer Lightning is most likely to occur at what time of day: morning, afternoon, evening, or night? - answerANSWER: 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 luna...

What is extinction? - The loss or death of a species What is mass extinction? - A decline in biodiversity greater than the background extinction rate What is background extinction? - 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? - They're detected geologically, and there have been 5...

SCI 225 unit 2 examMilutin Milankovic - correct answer The three orbital parameters of eccentricity, obliquity, and precession are collectively known as cycles named after this scientist Precession (Wobble) - correct answer Name the orbital parameter movement is similar to the movement of a spinning top Obliquity (tilt) - correct answer This orbital parameter changes on a time scale of 41,000 years Interglacial periods tend to occur roughly every 100,000 years - correct answer Over the ...

Extinction and Diversification: Extinction and Extirpation and Mass Extinction - a widespread and rapid decrease in the biodiversity Extinction and Diversification: 5 previous mass extinctions - Ordovician, Devonian, Permian, Triassic, Cretaceous Extinction and Diversification: The Permian's high oxygen levels allowed? - 30% Extinction and Diversification: How could bias in the fossil record influence our understanding of prior mass extinctions? - These biases are important but relatively...

Seven tenths - Approximate fraction of Earth's surface covered by oceans Basalt - Rock that makes up most of the ocean floor and volcanic ocean islands Mach - A dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound 1 - Number of protons in an ionic state of an atom of hydrogen Hydrogen peroxide - Common name for antiseptic, found in many homes, that decomposes into water and oxygen H2O2 - Chemical formula for hydrogen peroxide ...