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The bright star Antares in the constellation Scorpius (the Scorpion) emits the greatest

Investigating Astronomy: A Conceptual View of the Universe | 1st Edition | ISBN: 9781429210638 | Authors: Timothy F. Slater, Roger Freedman ISBN: 9781429210638 427

Solution for problem 6 Chapter 2

Investigating Astronomy: A Conceptual View of the Universe | 1st Edition

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Investigating Astronomy: A Conceptual View of the Universe | 1st Edition | ISBN: 9781429210638 | Authors: Timothy F. Slater, Roger Freedman

Investigating Astronomy: A Conceptual View of the Universe | 1st Edition

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Problem 6

The bright star Antares in the constellation Scorpius (the Scorpion) emits the greatest intensity of radiation at a wavelength of 853 nm. What is the surface temperature of Antares? What color is this star?

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Kingdom Fungi 30-40% on test Over 100,000 species of fungi May be up to 1.5 million - often hard to tell them apart The study of fungi is called mycology Fungi diverged about 1 billion years ago from the line leading to animals Terrestrial fungi diverged from aquatic fungi (chytridiomycetes) about 600 mya not on test We don’t have a clue what ancestor they evolved from (protist) Fossil record is very poor for fungi Soft bodies (preservation bias) Most primitive forms were probably tiny Not many people looking for them (interest bias) Used to think that they were green plants that had lost their chlorophyll They were first classified as plants (Division = older botanical version of a phylum) Recent molecular studies have shown that fungi are more closely related to animals Fungi, animals, and protists called choanoflagellates form a monophyletic group called Opisthokonta Named after the flagellated cells they share in common, with one posterior flagella Fungi are heterotrophs, usually parasites or saprobes Saprobes are organisms that get their nutrients from dead or decaying matter All fungal digestion is extracellular – fungal strands secrete digestive enzymes to dissolve its host (food) Fungi absorb their digested food directly through their cell walls huge surface area for digestion Many species are predators: Fire tiny missiles at passing prey Stun prey with toxic chemicals Enter as tightly wound coil, expl

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Chapter 2, Problem 6 is Solved
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Textbook: Investigating Astronomy: A Conceptual View of the Universe
Edition: 1
Author: Timothy F. Slater, Roger Freedman
ISBN: 9781429210638

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The bright star Antares in the constellation Scorpius (the Scorpion) emits the greatest