BSC 108 EXAM 1 / 80 +
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1. Understand and be able to list the levels of biological organization and how they are organized in a hierarchy
from simplest to more complex.: atoms, mol- ecules, cells, tissues, organs, organ sys...
, 1. Understand and be able to list the levels of biological organization and how they are organized in a hierarchy
from simplest to more complex.: atoms, mol- ecules, cells, tissues, organs, organ systems, organisms, populations,
communities,ecosystems, biosphere
2. Be able to list the properties common to all living things.: Complex yet order- ly, regulation, growth and
development, energy processing (metabolism), responseto the environment, reproduction (DNA), evolution, cells.
3. Be able to define homeostasis.: The process of keeping internal conditions such as temperature constant in an
organism.
4. Be able to list the three domains of living organisms and the basic type
of organisms each domain contains.: Eukarya, Archaea, Bacteria; prokaryotic oreukaryotic
5. Understand and be able to list the steps of the scientific method using an example experiment.: Observation,
questions, hypothesis, prediction, experiment.Ex. Experiment: Rats and caffeine. Observation: Rats operate for 12 hours of
the daywith no caffeine. Question: How many hours a day would rats operate with caffeine?Hypothesis: Rats will function
for more hours of the day with caffeine. Prediction: Rats will operate for 14 hours of the day instead of 12 hours of the day
with caffeine.Experiment: Create a control group (rats w/ no caffeine), experimental group (rats w/ caffeine) and
document.
6. Know what data are and be able to give an example of a hypothesis, an experimental variable, and a control
group.: Hypothesis: a proposed explanationfor a set of observations. Experimental variable: the independent variable that
is manipulated by the researcher to determine its relationship to or influence upon some outcome or dependent variable.
Control group: the group in an experiment that receives no treatment.
7. How do hypotheses differ from theories? Be able to give an example of a scientific theory.: Hypothesis: a
proposed explanation for a set of observations. Scientific Theory: a widely accepted explanatory idea that is much broader
in scopethan a hypothesis and is a comprehensive and well-substantiated explanation. I.e.Darwin's Theory of Evolution
8. What is an element?: A substance that can't be broken down into anothersubstance by ordinary means.
9. Know the three components of an atom and their properties.: 1. Protons havea positive charge. 2. Neutrons are
neutral. 3. Electrons have a negative charge.
10. What do electrons do?: Electrons orbit around the protons and neutrons in thenucleus of the atom.
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