Chapter 2: The Characteristics of Life Flashcards
Extinct or endangered animals
Honeybees
Polar bears
White tiger
Dodo birds
Life
An organ-based object that possesses the characteristics of metabolism and continuity of life
Metabolism
The sum of all chemical reaction that occurs in an organism
Continuity of life
How cells arise from cells of the same type and organisms arise from organisms of the same type
Biological Organisation
The different levels of complexity in an organism
Cells -> tissues -> organs -> system -> organisms -> population
Nutrition
The way in which living organisms obtain and use food
Autotrophic
When an organism makes its own food
Plants
Heterotrophic
Where an organism goes and gets its own food
Animal
Characteristics of living things
Biological organisation Response Excretion Nutrition Reproduction
Excretion
When an organism get rid of the waste products of metabolism
Response
The way living organisms react to their environment
Reproduction
The way in which offspring are produced from their parents
Animals excrete
Sweat by the skin
Urine by the kidney
Carbon dioxide by the lungs
Plants excrete through
Stomata and lenticels
Sexual production
More advanced Shows variation Amongst members of the same species Two parents Humans