General Biology Final Exam Lecture Questions with Detailed Verified Answers

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General Biology Final Exam Lecture
Questions with Detailed Verified
Answers

Question: What is Biology?
Answer: the scientific study of life


Question:Science is
Answer: the inquiry-based effort to describe and explain nature


Question:A hypothesis is a(n)
Answer: a proposed explanation for a set of observations


Question:How do hypotheses differ from theories?
Answer: Theories are more comprehensive than hypotheses


Question:Which sequence shows the steps of the process of science in an
order in which they might occur?
Answer: Exploration, hypothesis, prediction, experiment


Question:Which function is not a property of life?
Answer: Populations of organisms rarely change over time


Question:What are the two main processes upon which ecosystems depend?
Answer: Nutrient recycling and energy flow

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Question:Which structure can perform all activities required for life?
Answer: Cells


Question:What name is given to the functional compartments of a cell?
Answer: Organelles


Question:What is a gene? (Exam 1)
Answer: A unit of inheritance


Question:Which concept was purposed by Darwin?
Answer: Natural selection


Question:Which of these is required for natural selection to occur?


a.) Inheritance
b.) Unequal reproductive success
c.) Individual variation
d.) All of the answers are correct
Answer: All of the answers are correct


Question:What does "adaption" mean in an evolutionary context?
Answer: The accumulation of favorable variations in a population over time


Question:What process accounts for the different breeds of domesticated
dogs?
Answer: Artificial selection

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Question:Over a span of two decades in the 1900s, scientists measured
changes in the beak size of a population of Galapagos ground finches. This
data could provide_______.
Answer: Evidence of natural selection in action


Question:Antibiotic resistance evolves in bacteria when_____.
Answer: The presence of antibiotics favors bacteria that already have genes
for resistance


Question:How can radiation be controlled and safely used in medicine?
Answer: Apply radiation to specific parts of the body at controlled doses


Question:_____ is an example of an element.
Answer: Nitrogen


Question:What are the four most common elements found in living
organisms?
Answer: Carbon, Oxygen, Nitrogen, and Hydrogen


Question:In order to have a positive charge, an atom must have_____?
Answer: More protons than electrons


Question:All atoms of an element have the same number of_____?
Answer: Protons


Question:An atom's _____ are found in its nucleus?

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Answer: Protons and Neutrons


Question:Isotopes have the same number of ____ and different numbers
of_____.
Answer: Protons; Neutrons


Question:Consider the following reaction. What type of bond is holding the
two atoms together?


K + Br ----> K+ + Br- ----> KBr
Answer: Ionic


Question:What name is given to bonds that involve the sharing of electrons?
Answer: Covalent


Question:Why is water considered a polar molecule?
Answer: The oxygen end of the molecule has a slight negative charge, and the
hydrogen end has a slight positive charge


Question:Adjacent water molecules interact with one another via _____
bonds.
Answer: Hydrogen


Question:Some tiny insect are able to walk on water. Why?
Answer: The surface tension that is a result of water's cohesive properties
makes this possible