LIFE ? ROBERT PERRY MALIBU HIGH SCHOOL
NOTIFICATION and LEGAL STUFF This slideshow has been designed for non-profit, face-to-face classroom instruction. The images used herein have been taken from the public domain of the internet for this nonprofit purpose. Images which are protected by copyright law will be removed per request of the owner. This slideshow is protected and should not be used for commercial purposes. Robert Perry email@example.com
BIOLOGY is the study of LIFE. So… WHAT IS IT THAT MAKES A THING “ALIVE?” http://www.msnucleus.org/membership/html/k-6/lc/organ/5/lco5_6d.html
PART ONE: CHARACTERISTICS OF LIVING THINGS
LIFE ACTIVITIES Things that are alive demonstrate unique activities that allow us to distinguish them from things that are non-living. 1- reproduction 2- metabolism 3- homeostasis 4- survival 5- evolution 6- development 7- growth 8- autonomy 9 - DNA and/or RNA 10- response 11- death a virus
REPRODUCTION is the process by which organisms give rise to offspring.
1-Digestion of food and elimination of solid wastes
3- Balance of fluids in blood and body. 2-Circulation of blood with Nutrients and waste molecules http://www.nlm.nih.gov/medlineplus/ency/images/ency/fullsize/9624.jpg
HOMEOSTASIS The relatively constant conditions within organisms, or the physiological processes by which such conditions are maintained in the face of external variation.
SURVIVAL Living organisms remain in existence, or alive, in spite of adversity.
LIFE is a self-sustained system that is capable of undergoing Darwinian evolution.
“I have called this principle, by which each slight variation, …based on variations. if useful, is preserved, by the term Natural Selection”. - Charles Darwin The Origin of Species
DEVELOPMENT organisms go through changes after fertilization and before adulthood.
GROWTH Means that organisms increase body size over time.
____________means that living things are individuals, living free in the face of external constraints. They are independent and capable of self-determination. Illustration by Marion Bantjes
â€Śthe hereditary material for all organisms. It contains genes whose sequence specifies how and when to build proteins.
RESPONSE Organisms react and change as a result of environmental stimuli.
DEATH ALL ORGANISMS EVENTUALLY CEASE TO EXIST.
LIFE ACTIVITIES Things that are alive demonstrate unique activities that allow us to distinguish them from things that are non-living. 1- reproduction ARE THERE 2- metabolism 3- homeostasis ANY OTHER 4- survival LIFE 5- evolution 6- development CHARACTERISTICS 7- growth NOT ON THIS 8- autonomy 9 - DNA and/or RNA LIST ? 10- response 11- death
PART TWO: CHEMISTRY of OF LIVING THINGS
LIFE CHEMICALS Things that are alive contain unique combinations of chemical elements and make organic compounds that form their body parts. INORGANIC ELEMENTS (found in the environment): 1- carbon 2- oxygen 3- hydrogen 4- nitrogen 5- phosphorus 6- sulfur
ORGANIC COMPOUNDS (found in organisms): 1- carbohydrates 2- lipids (fats) 3- proteins 4- nucleic acids