Chapter 1 - Chapter 1-An Introduction to Life on Earth...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1—An Introduction to Life on Earth Characteristics of Life o Complex, organized structure o Response to stimuli o Homeostasis o Ability to acquire material and energy o Growth o Reproduction o Ability to evolve Complex, Organized Structure o The complexity of life is built in levels: Each level has ingredients or components which interact to make something greater than the sum of the parts— emergent properties. Example: o NaCl (Sodium Cholride) o Sodium = solid metal; Chlorine = poisonous gas; Together = table salt o Levels: Biosphere —that part of Earth inhabited by living organisms; includes both the living and nonliving components. Earth’s surface Ecosystem —a community together with its nonliving surroundings. Snake, antelope, hawk, bushes, grass, rocks, stream Community —two or more populations of different species living and interacting in the same area. Snake, antelope, hawk, bushes, grass Species —very similar potentially interbreeding organisms. Population —members of one species inhabiting the same area. Herd of pronghorn antelope Multicellular Organism —an individual living thing composed of many cells. Pronghorn antelope Organ System —two or more organs working together in the execution of a specific bodily function.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/30/2011 for the course BIOLOGY 1001 taught by Professor Crousillac during the Summer '10 term at LSU.

Page1 / 4

Chapter 1 - Chapter 1-An Introduction to Life on Earth...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online