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FCAT Review Life Science
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What does “Being Alive” mean?
Made of cells Respond to stimuli Respire (use energy) Adapt Reproduce Excrete wastes Secrete Have a life span
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Life Needs: Energy (solar or chemical) Water Tolerable Temperatures
Light Agreeable Atmosphere
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Structure of the Cell
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Single Cell vs. Multicellular
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Cell Organization Atom Molecule Organelle Cell Tissue Organ System
Organism
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Major Systems Excretory Respiratory Digestive Male Reproductive Female
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Major Systems Nervous Skeletal Circulatory Muscular
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Chemistry of the Cell Cells are made of atoms and molecules
Carbon, Oxygen, Hydrogen, Iron, Sodium, Potassium, etc.
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Organic Inorganic Organic compounds contain carbon
Carbohydrates, proteins, fats, nucleic acids, etc. Inorganic compounds are also necessary for life Water, salt, vitamins, etc.
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Cell Transport…note error on class notes
Passive Transport Active Transport Endocytosis Exocytosis
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Cellular Respiration organisms use oxygen to break down glucose and release water and carbon dioxide as waste C6H12O6 + 6O2 Energy + 6CO2 + 6H2O
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Photosynthesis plants use solar energy to make glucose from
water and carbon dioxide and release oxygen as waste Energy + 6CO2 + 6H2O C6H12O6 + 6O2
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Mitosis Cell division for body cells - diploid
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Meiosis Cell division to produce sex cells - haploid
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DNA Nitrogen bases Adenine Thymine Guanine Cytosine
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Sexual vs. Asexual Reproduction
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Heredity – passing of traits from parents of offspring
Alleles – different forms a gene has for a trait A – dominant allele for a trait (upper case) a – recessive allele for a trait (lower case) Heterozygous – different alleles Homozygous – identical alleles
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Punnett Squares Tools for predicting genetic crosses
Genotype – genetic makeup What alleles are present Phenotype – physical makeup What is shown
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Fill in the Punnett Square
T – tall plants t – short plants How many offspring plants will be tall? How many offspring plants will be short? What percentage of offspring will be tall plants?
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Fill in the Punnett Square
T – tall plants t – short plants How many offspring plants will be tall? How many offspring plants will be short? What percentage of offspring will be tall plants?
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Evolution – changes in kinds of animals and plants over time
Evidence Fossil record Continental drift Why do kangaroos live in Australia?
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From Eohippus to Equus
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Survival of the Fittest
Ability to reproduce successfully Charles Darwin The fittest?
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Ecology Biotic Factors Living things Abiotic Factors Non-living things
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Food Chain vs. Food Web
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Energy Pyramid
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Adaptation for Survival
Changes in structure behavior
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Cycles of Nature Carbon Nitrogen Phosphorus Water
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Environmental Issues Decrease in resources leads to decrease in natural populations Human activities Pollution Global warming Destruction of habitat
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Renewable and Non-Renewable Resources
Wind Solar Water Trees Biomass Non-renewable Coal Oil Gas
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Scientific Classification
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Scientific Classification
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Dichotomous Key
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Plant Kindom
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Plant Reproduction Spores vs. Seeds
Fern Gymnosperm Angiosperm
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Virus Viruses are not alive until they invade a cell
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