Lecture Notes for ASTR 1020 - Astronomy II with Luttermoser at East Tennessee (ETSU)

Notes Information

Material Type:Class Note
Class:ASTR 1020 - Astronomy II
Subject:Astronomy (ASTR)
University:East Tennessee State University
  • Technological
  • Complicated
  • Unfortunately
  • In/on/at a Place
  • Negative Results
  • Inorganic Molecules
  • East Tennessee State University
  • No Molecules
  • Observations
  • Overpopulation
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Sample Document Text

ASTR-1020: Astronomy II Course Lecture Notes Section XII Dr. Donald G. Luttermoser East Tennessee State University Edition 4.0 Abstract These class notes are designed for use of the instructor and students of the course ASTR-1020: Astronomy II at East Tennessee State University. XII. Life in the Universe A. What is Life? 1. Life is matter that can reproduce itself and evolve as survival dictates. 2. Life on Earth is carbon-based. Carbon can easily form long molecule chains. 3. Most life on Earth is composed of cells (viruses are not), which have proteins as their building blocks. Proteins have amino acids as their building blocks. 4. The molecule DNA is located in the nuclei of cells. This molecule carries all of the genetic information. It is through this molecule that life is able to reproduce itself. 5. Evolution takes place by mutation coupled with natural se- lection so lifeforms better adapted to the given environment will survive and reproduce more with these survival traits. a)...

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