Human Biology 1102 Normandale
Community College Test 1
Scientific Method - ✔️✔️1. Observation: prompts a question
2. Question
3. Hypothesis: educated guess
4. Experiment: has a controlled group, and an experimental group: has an independent
variable and confounding variables: changes outcomes and is not controlled.
5. Results
6. Conclusion
7. Analysis
Limits to the Scientific Method - ✔️✔️It cannot give insight in the generation of the
value judgement. Does not generate moral statements or other types of non quantifiable
subjunctive info
Primary Sources - ✔️✔️discovered or created during the time under study and is the
result of original scientific research or organization.
Ex. Scholarly Journal articles, original documents, creative works, relics or artifacts
Secondary Sources - ✔️✔️Interprets and analyzes primary sources. These sources are
one or more steps removed from the event. Have pictures, quotes, or graphics of
primary sources.
Ex. Textbooks, magazines, journals, articles, histories, criticisms, enclyclopedias
Properties of Water - ✔️✔️1. Interacts with lots of substances: an excellent solvent
2. Strong cohesiveness: sucked up into a plant like a straw
3. Tends to be more positive
4. Transport medium: urine waste
5. High Heat Capacity: helps prevent dramatic temperature changes
6. High heat of vaporization: prevents the body from overheating through sweat (why we
feel hotter on a humid day)
How do the properties of water prevent dramatic changes in body temperature? -
✔️✔️Because of the hydrogen bonds. Because animals (esp. humans) are made up
mostly of water. Hydrogen bonds held tightly together takes a lot of energy to break and
heat up. Water in the blood moves through the body to heat/cool.
Ionic Bond - ✔️✔️Mutual attraction of oppositely charges ions (strong). NaCl
, Ion - ✔️✔️charged atom
Covalent Bond - ✔️✔️formed when 2 or more atoms share electrons in their outer shell
(CH4)
Hydrogen Bonds - ✔️✔️attraction between slightly positive charged ions and slightly
negative charged ions (Weak) (H2O) Illustrated by dotted lines instead of solid lines.
Account for the unique qualities of water
7 Differences of a living thing - ✔️✔️1. Contain nucleic acids, proteins, carbohydrates,
and lipids.
2. Composed of cells
3. Grow and reproduce
4. Use energy and raw materials
5. Respond to their environment
6. Maintain homeostasis
7. Populations evolve and have adaptive traits
Classifications of living things - ✔️✔️A. Domain Bacteria: unicellular prokaryotic
organisms
B. Domain Archaea: unicellular prokaryotic organisms; extreme environments
C. Domain Eukarya: eukaryotic cels that contain a membrane-bound nucleus and
internal components.
1. Protists: protozoans, algae, diatoms
2.Fungi: molds, mushrooms
3. Plants: mosses, ferns, seed plants
4. Animals: invertebrates, vertebrates
Order of life - ✔️✔️Molecule to Cell to Tissues to Organs to Organ Systems to
Individuals to Populations to Communities to Ecosystems to Biospheres
Acid - ✔️✔️Anything that releases H+ (hydrogen ions) when placed in water
Has a pH less than 7
Sour taste
React with metal to form hydrogen gas
Increases the H+ concentration in water
Donates H+
Ex. Hydrochloric Acid
Base - ✔️✔️Anything that releases OH-, hydroxide ions when places in water
pH greater than 7
Bitter Taste
Slippery feel
Community College Test 1
Scientific Method - ✔️✔️1. Observation: prompts a question
2. Question
3. Hypothesis: educated guess
4. Experiment: has a controlled group, and an experimental group: has an independent
variable and confounding variables: changes outcomes and is not controlled.
5. Results
6. Conclusion
7. Analysis
Limits to the Scientific Method - ✔️✔️It cannot give insight in the generation of the
value judgement. Does not generate moral statements or other types of non quantifiable
subjunctive info
Primary Sources - ✔️✔️discovered or created during the time under study and is the
result of original scientific research or organization.
Ex. Scholarly Journal articles, original documents, creative works, relics or artifacts
Secondary Sources - ✔️✔️Interprets and analyzes primary sources. These sources are
one or more steps removed from the event. Have pictures, quotes, or graphics of
primary sources.
Ex. Textbooks, magazines, journals, articles, histories, criticisms, enclyclopedias
Properties of Water - ✔️✔️1. Interacts with lots of substances: an excellent solvent
2. Strong cohesiveness: sucked up into a plant like a straw
3. Tends to be more positive
4. Transport medium: urine waste
5. High Heat Capacity: helps prevent dramatic temperature changes
6. High heat of vaporization: prevents the body from overheating through sweat (why we
feel hotter on a humid day)
How do the properties of water prevent dramatic changes in body temperature? -
✔️✔️Because of the hydrogen bonds. Because animals (esp. humans) are made up
mostly of water. Hydrogen bonds held tightly together takes a lot of energy to break and
heat up. Water in the blood moves through the body to heat/cool.
Ionic Bond - ✔️✔️Mutual attraction of oppositely charges ions (strong). NaCl
, Ion - ✔️✔️charged atom
Covalent Bond - ✔️✔️formed when 2 or more atoms share electrons in their outer shell
(CH4)
Hydrogen Bonds - ✔️✔️attraction between slightly positive charged ions and slightly
negative charged ions (Weak) (H2O) Illustrated by dotted lines instead of solid lines.
Account for the unique qualities of water
7 Differences of a living thing - ✔️✔️1. Contain nucleic acids, proteins, carbohydrates,
and lipids.
2. Composed of cells
3. Grow and reproduce
4. Use energy and raw materials
5. Respond to their environment
6. Maintain homeostasis
7. Populations evolve and have adaptive traits
Classifications of living things - ✔️✔️A. Domain Bacteria: unicellular prokaryotic
organisms
B. Domain Archaea: unicellular prokaryotic organisms; extreme environments
C. Domain Eukarya: eukaryotic cels that contain a membrane-bound nucleus and
internal components.
1. Protists: protozoans, algae, diatoms
2.Fungi: molds, mushrooms
3. Plants: mosses, ferns, seed plants
4. Animals: invertebrates, vertebrates
Order of life - ✔️✔️Molecule to Cell to Tissues to Organs to Organ Systems to
Individuals to Populations to Communities to Ecosystems to Biospheres
Acid - ✔️✔️Anything that releases H+ (hydrogen ions) when placed in water
Has a pH less than 7
Sour taste
React with metal to form hydrogen gas
Increases the H+ concentration in water
Donates H+
Ex. Hydrochloric Acid
Base - ✔️✔️Anything that releases OH-, hydroxide ions when places in water
pH greater than 7
Bitter Taste
Slippery feel
