Bio
Published on Nov 19, 2015
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PRESENTATION OUTLINE
BIOSHPERE
ALL AREAS OF EARTH THAT CONTAIN LIFE
- The biosphere covers the world, from the highest mountain tops to the deepest oceans.
-It includes microorganisms that live underneath the earth
-example: the world
ECOSYSTEM
A COMMUNITY OF LIVING THINGS AND PHYSICAL ENVIROMENT
Ecosystem
-Ecosystems depend on environmental cycles such as continuous circulation of water, carbon, and other nutrients.
-humans are very dependent on ecosystems because they provide humans with food and water
-Example: the tundra
COMMUNITY
POPULATIONS OF DIFFERENT SPECIES LIVING IN THE SAME AREA
Community
-Factors that determine a community are number of species, diversity of species, and the fitness of the community after natural disasters.
-virtually all ecosystems on earth have been changed due to human behaviour
-Example: Forsets with undergrowth trees and animals
ECOLOGICAL SUCCESSION
CHANGE IN THE COMPISITION OF A COMMUNITY OVER TIME
Ecological succession
-Example: New rock forming islands after a volcanic eruption
-Ecological succession is always happening because habitats are constantly changing
-there are two types of succession, primary and secondary
BIOTIC POTENTIAL
HIGHEST POSSIBLE RATE OF INCREASE FOR A POPULATION
Biotic Potential
-biotic potential depends on the type of animal, generally humans usually have 1 child
-There are many limiting natural factors to a species biotic potential
Example: A duck having many surviving ducklings
CARRYING CAPACITY
NUMBER OF INDIVIDUALS AN ENVIROMENT CAN SUPPORT
Carrying capacity
-when scientists graph carrying capacity it shows an "s" shape when a environment hits carrying capacity
-the more complex the animal the more complex it is to determine carrying capacity
- example: rabbits at the maximum population in a forest
AUTOTROPH
PRODUCE ORGANIC NUTRIENTS FOR THEIR OWN USE
Autotroph
-many use photosynthesis or chemosynthesis as a source of energy
-Example: Algae
-Autotrophs are also called producers
HETEROTROPH
ORGANISM THAT NEEDS TO CONSUME FOOD FOR ENERGY (CONSUMERS)
Heterotrophs
-All heterotrophs consume plants or animals as food, and use the carbs, proteins and fats as nutrients
-Heterotrophs can be determined by the types of biomass that they eat
-Example: Bears
CARNIVORE
AN ANIMAL THAT FEEDS ON FLESH
Carnivore
-carnivores require a lot of calories because they hunt down their own food
-Carnivores are separated into 7 different groups, dogs, bears, cats, mustields, hyenas and raccoons.
Example: Wolves
OMNIVORE
AN ANIMAL OR PERSON THAT EATS FOOD OF BOTH PLANT AND ANIMAL ORIGIN
