1. SBA Review

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

3. 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

4. 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

5. 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

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

7. 5. Genetics

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

9. 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

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

11. 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

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

13. 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