Extraterrestrial life - Study guides, Class notes & Summaries

3 mechanisms for prokaryot genetic recombination - 1.)Transformation 2.)Conjugation 3.)Transduction Absolute dating - -Radioactive isotopes decay over regular annual time periods (half-lives) -C14 5,700 yrs - radioactive isotopes vs stable isotopes -stable isotopes stay the same after the organism dies Alexander Fleming - -Discovered Penicillin -microbe v. microbe interaction -Capitalized on mistake in the lab, left plate out and fungus grew on it Algae - -Protist -plant like; photoau...

uncw bio 202 exam 1 Questions with complete solution 2024 What are the stages of how life got started? - correct answer 1. Nucleotides & amino acids were produced prior to the existence of cells. 2. Organic polymers may have formed on the surface of clay 3. Cell-like structures may have originated when polymers were enclosed by a boundary 4. Polymers enclosed in membranes acquired cellular properties What are the 3 hypotheses on how nucleotides and amino acids were produced prior to th...

Extraterrestrial life is defined to be - any kind of life found beyond the Earth Humanity has been thinking about the possibility of extraterrestrial life - throughout human history since the time of the ancient Greeks Astronomy has shown us that the fundamental laws of physics are - the same everywhere in the universe The discovery of any kind of life beyond the Earth would - cause a profound change in perspective of the whole of humanity Beneath the surface of which moon of Saturn ...

In the process of nuclear fusion - two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is slightly less than the original nucleus Beneath the surface of which moon of Saturn is there evidence for the existence of a subsurface ocean of liquid water? - Enceladus Apparent retrograde motion occurs when a planet appears to - move westward with respect to background stars A chemoautotroph gets its energy from - chemical reactions and its carbon from its enviro...

astro 7n exam 2Which of the following does physics professor Bernard Bates assert as essential in order for living organisms to develop advanced technology? -written language -diet consisting of meat -harnessing electricity -ability to see colors -living on land - correct answer living on land Who among the following suggested that there might be life that consists of or lives within "dark matter" or "dark energy" (which actually make up far more of our universe than the atoms we are...

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 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...

uncw bio 202 exam 1 questions with complete solutions graded A+What are the stages of how life got started? - correct answer 1. Nucleotides & amino acids were produced prior to the existence of cells. 2. Organic polymers may have formed on the surface of clay 3. Cell-like structures may have originated when polymers were enclosed by a boundary 4. Polymers enclosed in membranes acquired cellular properties What are the 3 hypotheses on how nucleotides and amino acids were produced prior to t...

BIOL 1406: Final Exam ReviewThe method of reasoning that uses construction of general principles by careful examination of many specific cases is called - correct answer inductive reasoning Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a(n) - correct answer control If you were to design a long-term research study to determine why there are no human births in Lapland during the months of August, September, and ...

BIOL 1406: Final Exam Review The method of reasoning that uses construction of general principles by careful examination of many specific cases is called - correct answer inductive reasoning Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a(n) - correct answer control If you were to design a long-term research study to determine why there are no human births in Lapland during the months of August, September, an...