Biology chapter 1
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Last updated 11:58 AM on 9/14/22
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40 Terms
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Biology
The study of life
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Biological Hierarchy
Bioshpere, Ecosystem, community, population, organism, organ system, organs, tissue, cell, organelle, molecule
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Biosphere
all enviroment on Earth that support life
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Community
Array of organism in certain area
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Population
include all indivinuals of certain species in a give area
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organism
A living thing
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organ system
connections between organs
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Organ
made of tissue
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Tissue
Made of cells, special function
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Cell
unit of life
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Organelle
Structure that performs a certain function in a cell
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molecule
cluster of small chemical units (atom)- Dna
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Producer
provide food for ecosystem
-photosynthetic organisms
-photosynthetic organisms
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Consumer
eat plants/ animals
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decomposers
convert dead material or waste into useful for nutrients and plants
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Basics of a cell have
DNA
cell membrane
cell membrane
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Prokaryotic
- Bateria -No nucles, "free- floating DNA"
simple
simple
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Eulcaryotic
Nucleuse holds DNA, complex , has organelle
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Cells show correlation between
structure and function
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common factors of life
order, regulation, grow+development, energy processing, reproduction, response to environment, Evolution/ natural selection
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Biological Classification system
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
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Domain Prokaryotic
Bateria and Archaea
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Bacteria
most diverse/ widespread
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Archaea
Extreme conditions, Temperature higher, high ph, salinity
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Domain Eukaryotic
Eukarya
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Eukaray kingdoms
Animalia, Plantae, Fungi, Protista
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Animalia
Obtain energy through ingestion
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Plantae
produce own food via photosynthesis
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Fungi
Diverse, Decompose the remains of dead organisms+ organic waste + absorb nutrients
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Protista
mostly singled celled organisms
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Charles Darwin
1859 "On the Origins of Species by means of natural selection"
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Evolution
descent with modification
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Natural selection
survival of the fittest
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Observations
Individual variation, overproduction + competition
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Individual Variation
Individuals in a population vary in many heritable traits
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Overproduction + Competition
Species produce to many offsprings leads to limited resources
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Evolutionary Adaptation
Accumulation of favorabe traits
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Quantitative
Numerical
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Qualitative
Descriptive
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Scientific Method
1. Observation
2. Hypothesis
3. Experiment
4. analyze data
5. conclusion
6. Repeat
2. Hypothesis
3. Experiment
4. analyze data
5. conclusion
6. Repeat
Note 
Flashcards (32)