Unit 1-Intro Flashcards
Define biology
The scientific study of life
What are the seven properties and processes that we associate with life
1) Order
2) Reproduction
3) Growth and development
4) Energy processing
5) Response to the environment
6) Regulation
7) Evolutionary adaptation
What is science
“To know”
knowledge, inquiry, and reasoning
What are the two types of reasoning
Inductive
- logic based on several observations (generalized)
Deductive
- logic used to make hypotheses and test predictions
Define hypothesis
Is a proposed explanation for a set of observations that must be testable and falsifiable. Leads to predictions that can be tested
Define a scientific theory
A predictive but is much broader in scope than a hypothesis. Usually general
How the scientific theory works
Observation Question 2 hypothesis 2 predictions 2 experiments for the hypothesis 1 control group Evaluation and conclusion
What are two things a hypothesis must be
Testable
Falsifiable
What is the best type of experiment design
Controlled randomized and blinded
What makes a hypothesis proved to be true
There is no way to be proved true because it can keep being tested but the more experiments the better support
Define cause
Factor A leads to condition B
Define correlation
When factor A changes so does condition B
Define life
An imperfect replicating system that evolves by natural selection
What are the 9 hierarchies of life
Biosphere Ecosystem Community Population Organism Organ system Organ Tissue Cell Organelle Molecule Atom
All organisms are ____
Composed of cells
what are the two basic types of cells
Prokaryotes
Eukaryotes
What are central themes of biology
Organisms interact with their environment exchanging matter and energy
The universal genetic code
The theory of evolution
The nutrient cycle
Producers
Consumers
Decomposers
Rocks and soil
Which best describes the scientific method
If my hypothesis is correct I can make predictions and my results will not falsify my hypothesis
Single called amoebas and bacteria are grouped into different domains because
Bacterial cells lack a membrane enclosed nucleus
A biologist studying interactions among the protists in an ecosystem could not be working at which level in life’s hierarchy
The organ level
What statement best distinguishes hypotheses from theories in science
Hypotheses usually are narrow in scope; theories have broad explanatory power
What best demonstrates the unity among all living organisms
Common genetic code
The core idea that makes sense of all of biology is
Evolution
