What are the three major objectives of BIO 150? correct answers 1) unifying features of living systems --> ecological to molecular --> diversity and complexity
2) scientific research skills
3) apply knowledge to questions and issues
What is ecology? correct answers The diversity of lif...
BIO 150 - Exam #1 || QUESTIONS & ANSWERS
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What are the three major objectives of BIO 150? correct answers 1) unifying features of
living systems --> ecological to molecular --> diversity and complexity
2) scientific research skills
3) apply knowledge to questions and issues
What is ecology? correct answers The diversity of life, evolution, and how organisms interact
with each other and the environment
What is biology? correct answers The science of living systems! Includes observation,
prediction, experimentation, theory, and communication!
What is the theory of evolution? correct answers All of today's species have evolved from
simple life forms ... gene distribution changes over time
Long ago, organisms were different than they are today, we can see evidence of this with
what? correct answers Fossils!
What are homologous structures? correct answers homologous structures are similar in origin
but not function (whale flippers /human arms).... same structure = defended from same
animal
We are all created of the same basic modes of inheritance ... ? correct answers DNA !
We can sequence how close species are using what? correct answers Genetics , DNA
differences
What is biogeography? correct answers Geographic distribution of species, the most similar
are found in the same areas
Isolated organisms take their own ____________ courses correct answers Isolated organisms
take their own evolutionary courses
Microevolution correct answers allele changes that occur relatively quickly in small
populations
Macroevolution correct answers The changes that occur on larger scales and over more time
How is the world understandable? correct answers There are patterns in all of nature and
constancy
an example) all molecules have electrons in orbit!
What does it mean when it is said that the universe is a single system with basic rules? correct
answers Knowledge gained in one part is applicable to other parts
, Why are scientific ideas subject to change? correct answers - New ideas challenge prevailing
thought... this can be caused by new tools, etc.
- Ideas are constantly tested, improved, and occasionally discarded
-approximations of the world are increasingly accurate
What does it mean when it is said that science is durable? correct answers We modify vs
reject ideas (a majority of the time)... this is due to new technology = new data = new
modifications to theory that are driven by new questions
What can't science answer? correct answers What can't be examined in a scientific way!
How do we maintain the ethics of science? correct answers 1. strongly held traditions of
record keeping, openness, and replication
2. critical peer review = ethical scientists
3. experiments conducted with the least amount of harm (health, comfort of animals,
informed consent for people)
4. ethics applies to harmful effects of research
What is biodiversity? correct answers the variety of life in the world or in a particular habitat
or ecosystem.
this provides ecological goods and services --> creates opportunity and fulfills roles!
How does biology fit into scientific study? correct answers - brings Information from other
disciplines
- is the science of life (grow, develop, reproduce)
- living systems show hierarchical organization and emergent properties in each level
- much of bio is descriptive --> empire data provides the statistics
- provides a way of studying the complex - reductionism
- Unifying themes!
What is reductionism? correct answers The approach of reducing complex systems to simpler
components that are more manageable to study.
What are the unifying themes of biology? correct answers - structure and function
- copying and passing of info --> molecular inheritance
- evolution = diversity
What is the difference between descriptive and empirical data? correct answers descriptive
data is a description while empirical data provides the numbers and statistics to support.
What is a theory in science? correct answers a broad and comprehensive statement about the
world that is supported by the accumulation of a great deal of verifiable evidence; much
broader in scope than a hypothesis
Science demands what? correct answers EVIDENCE
How do you conduct science in a valid way? correct answers it is an observation of
phenomena
- experimentation
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