1. Humans In The World Of Biology
Chapter 1
Humans In The World Of Biology

2. The Scientific Method Scientific Method
A procedure that is used to solve problems or answer questions.
A way of thinking and looking at the world.
A technique used to gather information and reach conclusions.

3. Steps to the Scientific Method
Then make new
predictions and
test them
If results support
hypothesis
Analyze
Results
Observation
Hypothesis
Prediction
Experiment
Conclusions
Then revise the hypothesis
If the results do not
support hypothesis

4. Scientific Method continued
Reproducibility- repeat experiments.
Publication- publish experiments in a peer reviewed journal.
Scientific Theory- a broad-ranging explanation for some aspect of the universe that has been repeatedly confirmed through hypothesis testing.

5. Scientific Method and Research
Clinical trials- medical studies on humans.

6. All Living Things Share Basic Characteristics

7. Living things contain nucleic acids, proteins, carbohydrates, and lipids

8. Living things are composed of cells

9. Living things reproduce

10. Living things metabolize

11. Living things respond

12. Living things maintain homeostasis

13. Populations of living things evolve and have adaptive traits

14. Levels of Organization
Tissue Level
Ecosystem Level
Molecular Level
Individual Level
Biosphere Level
Organ System Level
Cellular Level
Community Level
Population Level
Organ Level
Molecular Level
Cellular Level
Tissue Level
Organ Level
Organ System Level
Individual Level
Population Level
Community Level
Ecosystem Level
Biosphere Level

15. Molecule Cell Tissue Organ Organ System Individual
The chemical components
of cells
Molecule
Cell
The basic unit of life
Group of similar cells that
perform a common function
Tissue
Two or more different tissues
that perform a common
function
Organ
Organ
System
Group of related organs that
have a common function
Individual
A single organism

16. Individual Population Community Ecosystem Biosphere A single organism
All individuals of the
same species that
occupy a given area
Population
All the species in an
ecosystem that can
interact
Community
A community and its
physical environment
Ecosystem
The part of the earth
that supports life
Biosphere

18. Classificaton of Humans- Homo sapiens L. 1758
Animalia
Chordata
Vertebrata
Mammalia
Primates
Hominidae
Homo
sapiens