Extraterrestrial life - Study guides, Class notes & Summaries

A chemoautotroph gets its energy from - chemical reactions and its carbon from its environment Abnormal forms of protein molecules called prions have one of the characteristics of living things in that they - actively respond to external changes According to Kepler's Second Law of planetary motion, a planet moves fastest in its orbit when it is - at perihelion According to the nebular theory for the formation of the solar system - planets should be rotating in the same direction as they o...

Test Bank for Principles of Life 3rd Edition Multiple Choice 1. Which of the following is classified as a living organism by biologists? a. DNA molecule b. Bacterium c. Metabolic energy d. Feather e. Meteorite ANSWER: b 2. The basic structural and physiological unit of most living organisms is the a. aggregate. b. organelle. c. genome. d. membrane. e. cell. ANSWER: e 3. One reason we consider the dormant seed of a desert plant to be alive is that it a. is extracting energy from...

Research is assigned in college courses because A) it lets one practice the skills of finding, evaluating, summarizing, and using information. B) research skills are necessary for success in just about every profession that requires a college degree. C) it can help a researcher set the record straight and avoid accepting at face value what is claimed to be fact. D) all of these correct answers all of these Whether extraterrestrial life exists or not is A) a matter of fact. B) a ma...

E If a ≠ b and 1/x + 1/a = 1/b, then x = A. 1/b - 1/a B. b - a C. 1/ab D. a - b/ab E. ab/a - b C The graph of which of the following equations is a straight line parallel to the graph of y = 2x ? A. 4x - y = 4 B. 2x - 2y = 2 C. 2x - y = 4 D. 2x + y = 2 E. x - 2y = 4 A An equation of the line that contains the origin and the point (1, 2) is A. y = 2x B. 2y = x C. y = x -1 D. y = 2x +1 E. y/2 = x - 1 E An apartment building contains 12 units consisting of ...

Test Bank for Biological Science, Canadian Edition 2nd Edition by Scott Freeman, Michael Harrington, Joan C. Sharp. Contents Chapter 1 Biology and the Tree of Life 1 1.1 The Cell Theory 2 Are All Organisms Made of Cells? 2 Where Do Cells Come From? 2 1.2 The Theory of Evolution by Natural Selection 4 What Is Evolution? 4 What Is Natural Selection? 4 1.3 The Tree of Life 5 Linnaean Taxonomy 6 BOX 1.1 Scientific Names and Terms 6 Using Molecules to Understand the Tree of Life 8 1.4 Doing Biology 1...

What are the steps of the Scientific method? - ANSWER-Observation, Hypothesis, Experiment, Conclusion Understand the Variables in Experiments - ANSWER-Independant: Intentionally change to affect the dependent variable Dependant: Effect of the independent variable being changed Control: Kept the same and not treated Science has limits, can you name a few things that science does not do? - ANSWER-Does not make moral judgments, does not make aesthetic judgements, does not tell you how to us...

Is there debate within the scientific community about the current causes of global warming? - ️️Climate models lead to the unequivocal conclusion that human emissions of greenhouse gases are responsible for the current rise in global temperatures; There is no debate about this in the scientific community Why does the temperature of the troposphere decrease with altitude? - ️️This layer of the atmosphere is heated from the ground, causing it to be warmest near the surface. As warm air ri...

EOSC 116 - MODULE B 2024 Exam Questions And Answers All Correct And 100% Verified, Universe is _______ years old based on astronomical observations 12-14 billion Earth and solar system formed __________ years ago. 4.5-4.6 billion Biosphere Thin veneer of life that surrounds the surface of our planet - interacts with other earth systems: lithosphere, hydrosphere, cryosphere and atmosphere. Hypotheses of life development: Panspermia Life was brought to earth through meteorites and comet...

EOSC 116 - MODULE B 2023 Exam Questions And Answers All Correct And 100% Verified, Universe is _______ years old based on astronomical observations 12-14 billion Earth and solar system formed __________ years ago. 4.5-4.6 billion Biosphere Thin veneer of life that surrounds the surface of our planet - interacts with other earth systems: lithosphere, hydrosphere, cryosphere and atmosphere. Hypotheses of life development: Panspermia Life was brought to earth through meteorites and comet...

In Wikipedia, look up "Circumstellar habitable zone" and answer this question: If a star is much larger/brighter than our Sun, where will the habitable zone be located relative to our Sun's habitable zone? - Farther from the larger/brighter star. In Wikipedia, look up "Doppler effect" and answer the following question: With the Doppler effect, what changes when there is relative motion between the source of a wave and the observer? - The frequency of the wave In Wikipedia, look up "D...