Bio 101 Chpt 1
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The scientific study of life
- The basic unit of an organism
- Made up of 70% water and other materials
- Have genes which produce proteins
- Living individual
- Consists of one or more organisms
a particle of matter; composed of protons, neutrons, and electrons
A group of cells that perform a common function
- Two or more tissues that interact and function as an integrated unit
- Ex. kidney and heart
Different componets that peform
- (The species)
- Two or more physically or functionally linked organs
Group of species
Group of different species
- The living and nonliving components of an area
- Ex. The savanna
The interchange- refers to different ecosystems
- That portion of the earth and it's atmosphere where living organisms inhabit
- which means the part of the earth that is alive
What are the levels of Biological Organization?
- Organ system
- different components of an organism that interacts physically and chemically for complex functions
- causes structural organization to be closley connected in order to function well.
What are 8 characteristics of living organisms?
- has a cell
All the biochemical reatctions in a cell or living organism
What are the 2 components of metabolism?
- Ex. respiration
- building up (synthesis)
- Ex. photosynthesis
getting rid of metabolic waste products
What are the 3 main metabolic excretory products?
- sweat (skin)
- carbon dioxide (lungs)
- urine (kidney)
- maintance of constant internal enviornment in an organism
- Ex. maintance of glucose levels and osmoregulation
regulating water in your body
3 major ...
- glucose balance
- They fix energy
- called autotrophs (self feeders) b/c they produce their own food
- mostly green plants
- AKA heterotrophs
- different kinds of feeding
- They don't feed themselves, but they eat different kinds of organisms.
- break them down and return them to the ecosystems
- mostly fungis and bacteria
What are two ways reproduction occurs?
- asexual reproduction
- sexual reproduction
- Where there is no gametes (sex cells) Ex. sperms
- Ex. Stem cutting, stemstem tubers, stems, and sugar cane
What is the reproduction organ of a man?
What is the reproduction organ of a woman?
development of features for survival in a specific enviornment and passing them on to offspring through reproduction
heritable changes in genes and chromosomes
formation of new species
survival of the fittest organisms selected by the environment b/c of special features for survival
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