SBA Review

1. Nature of Science Independent Variable – “Test variable” You control it, change it Dependent Variable – “Outcome variable” Result Analyze a chart/graph

2. Classification Scientific Name – Genus and species Levels: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species 3 Domains: 1. Bacteria 2. Archea 3. Eukarya 6 Kingdoms: Bacteria, Archea, Protist, Fungi, Plants, Animals Eukarya – has a nucleus is complex – Protist, Fungi, Plants, Animals

3. Cell Theory 1. All living things are made of cells 2. Cells are the basic unit of structure and function. 3. Cells come from other cells

4. Cell Part and Function Nucleus – controls the cell Cell membrane – controls what enters and leaves Cell Wall – protects, only plant cells Mitochondria – Powerhouse, cellular respiration happens here Cytoplasm – fills up the cell Vacuole – storage

5. Genetics Punnett Squares B B b Genotype – gene, letters Phenotype – physical appearance Dominant – Seen traits, capital letters Recessive – hidden traits, lowercase Bb bb

5. Genetics

5. Genetics Mendel’s Pea Plants – cross pollinated pea plants with paintbrush. Round vs. Wrinkled, Green vs. Yellow

6. Body Systems Skeletal – support, movement, protect Skin – protect, vitamin D absorption, Muscular – movement Digestive – removes waste, nutrients Circulatory – moves blood – delivers good, removes bad Respiratory – gas exchange, O2 and CO2 Excretory – sweat, urine, removes waste Immune – protects you from pathogens Endocrine – Hormones Nervous – messages to brain, move, Reproductive - Babies

Homeostasis – stable internal conditions that keep you alive 6. Body Systems Homeostasis – stable internal conditions that keep you alive

7. Darwin / Evolution Natural selection – Survival of the fittest, organisms better adapted to their environment survive and can reproduce Artificial Selection – humans decide which species or breeds survive based on characteristics they like Galapagos Island – Finches (Birds) – beaks are different based on they eat, Turtles – necks/ shells are different based on where their food source is

8. Photosynthesis/ Cellular Respiration Carbon dioxide + water + sunlight => glucose (food) + oxygen Cellular Respiration (energy!) Glucose (food) + oxygen => water + carbon dioxide

9. Food Webs Arrows point from the prey to the predator 1st level (Primary) consumers – Eat producers 2nd level (Secondary) consumers – Eat 1st level consumers 3rd level (Tertiary) consumers – Eat 2nd level consumers Lose 10% each level – multiply by .1 or take off one decimal place