Final Exam: Introduction to Biology Flashcards
Biology is the study of
Life
What is the difference between quantitative and qualitative data
Quantitative: data that can be counted or measured (ex: There are 40 beads)
Qualitative: collecting data with observations and senses (ex: It is blue)
Give an example of quantitative data
The dog weighs 50 pounds.
Give an example of qualitative data
The dog is brown.
What is a variable
any factor in an experiment that can be changed or tested
Define independent variable
the variable that is controlled or predictable in an experiment (x-axis)
Definite dependent variable
variable that changes in response to the independent variable (y-axis)
What axis does each get graphed on
Independent variable: x-axis
Dependent variable: y-axis
What axis does the independent variable get graphed on
x-axis
What axis does the dependent variable get graphed on
y-axis
What are the three steps of CER
1) Claim
2) Evidence
3) Reasoning
Define claim (CER)
A statement that answers a question or problem
Define evidence (CER)
the data from your experiment that supports your claim
Define reasoning (CER)
explains why the evidence supports the claim
Explain the difference between a hypothesis and a claim
Hypothesis: usually before the experiment, a testable educated guess
Claim: after the experiment, a statement regarding the data
What are the characteristics of a hypothesis
A short definitive, if-then statement about what you think the results of an experiment will be
What are the characteristics of a claim
a concluding statement that answers the original question/problem
What are the 7 characteristics of all living things
1) Made of cells
2) Grow and develop
3) Reproduce
4) Obtain and use energy
5) They respond to their environment
6) Genes are based on a universal genetic code
7) Maintain homeostasis
Define spontaneous generation
the idea that living things could arise from nonliving things
Is spontaneous generation still thought to be true today
No; it was proved by Pasteur (broth and flask) and Redi’s (meat in jar covered in cloth)experiments
