Chapter 1: Exploring Life Flashcards
What are the properties of life?
Life consists of order, reproduction, growth/development, energy processing, regulation, response to environment, evolutionary adaptation
How do biologists and taxonomists arrange the diversity of life?
Life is arranged into three domains; Domain bacteria,
Domain Archaea, Domain Eukarya
What are the subcategories of the domain Eukarya?
various protists & kingdoms fungi, plantae, animalia
What is the order of life’s hierarchy of organization?
biosphere > ecosystem > community > population > organism > organ system > organs > tissue > cells > organelles > molecule
What is science?
A way of knowing, using observations, hypothesis, predictions, test, and data analysis.
In what ways can a hypothesis be tested?
controlled experiments and observational data.
How are biology, technology, and society connected?
Technological advancements derive from scientific research, and research benefits from new technological advancements
What are the five themes of biology?
evolution, DNA (info), structure and function, interactions, energy and matter
Which theme is at the core of biology?
Evolution
How do humans affect evolution?
artificial and natural selection
What are emergent properties?
the result of interactions between the components of a system
The species of bacteria residing on your skin make up?
a) an ecosystem
b) a community
c) a population
D) the biosphere
b) a community
Which of these is NOT a property of all living organisms?
a) capable of reproduction
b) uses energy
c) composed of multiple cells
d) responds to the environment
c) composed of multiple cells
Which of the following statements best distinguishes hypotheses from theories in science?
a) theories are hypotheses that have been proven
b) hypothesis usually are narrow in scope; theories have broad explanatory power
c) hypotheses are tentative guesses; theories are correct answers to questions about nature
d) hypotheses and theories are different terms for essentially the same thing in science
b) hypothesis usually are narrow in scope; theories have a broad explanatory power
Which of the following best demonstrates the unity among all living organisms?
a) structure correlated with function
b) DNA and a common genetic code
c) emergent properties
d) natural selection
b) DNA and a common genetic code
A controlled experiment is one that?
a) proceeds slowly enough that a scientist can make careful records of the results
b) keeps all variables constant
c) is repeated many times to make sure results are accurate
d) tests experimental and control groups in parallel
d) tests experimental and control groups in parallel
Which of the following is a TRUE statement of observational data?
a) It is always qualitative, Not quantitative
b) it is used to form hypotheses, but not to test them
c) it can include comparisons of fossils as well as DNA sequences
d) it is the type of data used for the independent variable in a controlled experiment.
c) it can include comparisons of fossils as well as DNA sequences
A biologist studying interactions among the bacteria in an ecosystem could NOT be working at which level in life’s hierarchy?
a) population level
b) molecular level
c) organism level
d) organ level
c) organ level
Which of the following best describes the logic of scientific inquiry?
a) if I generate a testable hypothesis, my experiments will support it
b) if my prediction is correct, it will lead to a testable hypothesis
c) if my observations are accurate, they will support my hypothesis
d) if my hypothesis is correct, I can expect certain test results
d) if my hypothesis is correct, I can expect certain test results
