Extinctions 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...

Key point #1 Even the most desperate organisms share some features, suggesting that the single, nine random process generated diversity. True or False #1: biodiversity on earth will likely decrease in the near future. True! Fingerprints of human activity, spread of an invasive species, Rapid change and global climate, habitat destruction, Deforestation What are three Worlds Views? 1. Natural Evolution - Evolution by natural process 2. Theistic Evolution - Evolution guided by G...

What is the key limiting factor on cell size? Correct Answer-The size of a cell is limited by the ratio of its surface area to volume. A cell will only remain stable if... Correct Answer-...the surface area of the plasma membrane maintains a balance with the volume of the cytoplasm. The salivary gland... Correct Answer-...secretes saliva which enters the digestive tract and aids the digestive process. Gregor Medel Correct Answer-Studied the relationships between traits expressed in pare...

1. Which of the following is a true statement about the members of a species? - Answer-B. They must be able to breed with one another 2. According to most scientists, what is the ultimate cause of most mass extinctions? - Answer-C. Major changes in the environment 3. What can you conclude from the fact that more than a billion species have gone extinct during Earth's history? - Answer-A. Extinction is a natural part of life on Earth 4. The bald eagle almost went extinct when humans began ...

Test Bank for Evolution, Making Sense Of Life, 2nd Edition by Carl Zimmer, Prof. Douglas Emlen. Table of Content Chapter 1: The Virus and The Whale: How Scientists Study Evolution Chapter 2: The Evolution of Evolution: From Natural Philosophy to Darwin Chapter 3: What The Rocks Say: How Geology and Paleontology Reveal the History of Life Chapter 4: The Tree of Life: How Biologists Use Phylogeny to Reconstruct the Deep Past Chapter 5: Raw Material: Heritable Variation Among Individuals Chapter 6...

Which of the following is an exogenic process? Volcanism Weathering Earthquakes Flows of heat and materials in the mantle - Weathering Which of the following is an endogenic process? Weathering Glacial erosion Volcanism Stream deposition - Volcanism Uniformitarianism assumes thatmountains, plains, and canyons formed by catastrophic events. catastrophic episodes have regularly occurred. Earth is quite young and is shaped by dramatic events. the same physical processes we see today ar...

ABA - Chapter 24 ExtinctionEscape Extinction - correct answer Behaviors maintained with negative reinforcement are placed on escape extinction when those behaviors are not followed by termination of the aversive stimulus; emitting the target behavior does not enable the person to escape the aversive situation. Extinction - correct answer The discontinuing of a reinforcement of a previously reinforced behavior (i.e., responses no longer produce reinforcement); the primary effect is a decrease ...

Animal Diversity, 8e (Hickman) Chapter 1 Science of Zoology and Evolution of Animal Diversity 1) A characteristic of science is that A) it is not explained by natural laws. B) its hypotheses are testable. C) its conclusions are final. D) it is not falsifiable. E) it seeks to define the vitalistic forces of life. Answer: B Section: 01.01 Topic: Principles of Science Learning Objective: 01.01 Explain that science consists in testing, possibly rejecting, and improving our simplest and be...

GEG 111 Exam 3 Which of the following is an exogenic process? - CORRECT ANSWER weathering Which of the following is an endogenic process? - CORRECT ANSWER volcanism Uniformitarianism assumes that - CORRECT ANSWER the same physical processes we see today are a key to understanding the processes that have been operating throughout geologic time Which of the following is CORRECT regarding the geologic time scale? - CORRECT ANSWER The bulk of Earth's history has occurred during th...

CLEP Biology Exam Questions & Answers 2024/2025 What is the key limiting factor on cell size? - ANSWERSThe size of a cell is limited by the ratio of its surface area to volume. A cell will only remain stable if... - ANSWERS...the surface area of the plasma membrane maintains a balance with the volume of the cytoplasm. The salivary gland... - ANSWERS...secretes saliva which enters the digestive tract and aids the digestive process. Gregor Medel - ANSWERSStudied the relationships bet...