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Basic concepts of biology
Organization of nature
Biosphere, ecosystem (EX: Florida Coast), community (organisms of the same ecosystem),
population(EX: group of brown pelicans), organism(EX: brown pelican), organ system(EX:nervous
system), organ(EX: brain),tissue(EX: nervous tissue), cell (EX: nerve cell), organelle (EX: nucleus),
molecule(EX: DNA)
PRODUCERS:
-provide the food for a typical ecosystem
-photosynthetic organisms
CONSUMERS:
-eats plants/other animals
-take in oxygen produced by plants
-wastes return other chemicals to the environment
DECOMPOSERS:
-decomposes waste and remains
-act as recyclers
-change complex matter into simpler mineral nutrients (used by plants)
FOUNDATION FOR THE UNITY OF LIFE:
-order: all living things exhibit complex organization (EX: sunflower seeds in a sunflower plant)
-regulation: organisms maintain their internal environment (homeostasis)
-growth& development: inherited information carried by genes controls the pattern of growth and
development
-energy and processing: organisms take in energy and transform it to perform in life activities
-respond to its environment: responds to environmental stimuli
-reproduction: reproduce its own kind
-evolutionary adaptation: adaptations suited to their environments and are passed to offspring
PROKARYOTIC CELLS:

EUKARYOTIC CELLS:

-smaller and simpler

-bigger and more complex

-commonly known as bacteria

-subdivided by internal membranes

NATURAL SELECTION:
-a slight mutation causes an organism to have a slightly different trait than the rest of the species
-if the trait is favorable, the organism is more successful
-organism lives to reproduce
-organism passes on the favorable trait
-evolution takes over



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