ANSWERS VERIFIED TO PASS (8 PGS)
A primary defining characteristic of Life is that it is cellular. What do all cells
have in common? - correct answer ✔DNA, RNA, plasma membranes
How does a scientific theory differ from a scientific hypothesis? - correct
answer ✔Hypotheses are tightly focused proposed answers to a specific
question; theories are broad categories of explanation that explain a wide
range of related patterns and processes
What is the role of inductive reasoning in scientific methods? - correct answer
✔Inductive reasoning is used to develop generalizations and hypotheses
about patterns and processes in the natural world.
Which of the following best describes the logic of scientific inquiry? - correct
answer ✔If my hypothesis is correct, I can expect certain test results.
To answer questions about life, biologists use scientific methods, which
involve hypotheses, predictions, and experiments or other tests. Which
statement most accurately summarizes the relationship among these three
elements? - correct answer ✔A hypothesis is a proposed answer to a tightly
focused question; a prediction is a specific deductive claim that follows from a
hypothesis and that can be tested.
If the results of an experiment are what were predicted by the hypothesis: -
correct answer ✔The hypothesis is supported
In part, scientific knowledge is always tentative and subject to change or
revision because: - correct answer ✔Generalizations and hypotheses are
derived inductively.
, Which of the following statements is the best prediction based on the
hypothesis that native bird species diversity is higher in urban and suburban
areas where native plants are grown than in urban and suburban areas where
most of the landscaping is with non-native plants? - correct answer ✔If
landscapes planted with mostly non-native plants are converted to landscapes
with mostly native plant species, native bird species diversity will increase
What is the characteristic of DNA and RNA molecules that allow them to carry
information? - correct answer ✔Base variability.
What is the structural feature that allows DNA to replicate? - correct answer
✔The strands of the double helix are complementary.
What are mutations? - correct answer ✔Changes in the sequence of DNA
nucleotides.
Why is a silent mutation phenotypically "silent"? - correct answer ✔The
redundancy of the genetic code.
A missense mutation: - correct answer ✔Results in the substitution of a
different amino acid from that specified by the original codon.
The genetic code is essentially the same for all organisms. From this, one can
logically assume which of the following? - correct answer ✔All organisms are
descended from a common ancestor.
Which of the following is a true statement about sexual vs. asexual
reproduction? - correct answer ✔In sexual reproduction, individuals transmit
half of their nuclear genes to each of their offspring