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Review Sebastián Hernández Perez - Coggle Diagram
Review Sebastián Hernández Perez
What do biologists do?
They study the diversity of life, research diseases, develop technologies, improve agriculture and preserve the environment
Characteristics of living Organisms
Made of one or more cells, displays organization, grows and develops, reproduces, responds to stimuli, requires energy, maintains homeostasis, and his adaptations evolve over time.
Scientific Method
Investigate the topic
Test the hypothesis by doing an experiment,
Make a hypothesis
Analyse the data and draw a conclusion
Ask a question.
Compare and share results.
Biology: The study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
Science and Pseudoscience
Pseudoscience seeks confirmations and science seeks falsifications.
Scientific Law: predicts the result of certain initial conditions.
Theory: A theory tries to provide the most logical explanation about why things happen as they do.
Ecology: The study of the relationship between living beings in a specific área and the área where they live.
Biosphere: The regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.
Levels of organization
Organs
Organ System
Tissue
Organism
Cells
Habitat and Niche: A niche is the role position that an organism has, and the habitat is where the organism lives.
Autotrophs and Heterotrophs: Autotrophs are producers and heterotrophs are consumers.
Trophic level: Each of several hierarchical levels in an ecosystem
Food Web
Food Chain
Symbiotic Relationships
Commensalism: Happens when only one benefits from the other but doesn't hurt the other
Parasitism: happens when one organism benefits at the expense of the other
Mutualism: happens when two organisms benefit from each other
Biogeochemical Cycle: The flow of chemical elements between living organisms and the environment.
Cycle of Water
Cycle of Nitrogen
Phosphorus Cycle
Carbon Cycle
Experimentation
Experimental group: Group exposed to the factor being tested.
Independent Variable: Is the tested factor.
Control Group: Used for comparison.
Dependent variable: Depends on changes to the independent variable.
Constant: Factor that remains fix during the experiment
Data: Information gained from observations, can be qualitative or quantitative
