Biology 1406 UNIT 1 questions and
correct answers
Prokaryotic cells are found in the domain(s) _____.
a.) Bacteria and Archaea
b.) Bacteria and Eukarya
c.) Bacteria and Protista
d.) Bacteria
e.) Protista and Archaea - correct answer ✔✔ a.) Bacteria and Archaea
A human is classified in domain _____ and kingdom _____.
a.) Eukarya ... Fungi
b.) Eukarya ... Protista
c.) Eukarya ... Plantae
d.) Eukarya ... Animalia
e.) Bacteria ... Archaea - correct answer ✔✔ d.) Eukarya ... Animalia
A rose bush is classified in domain _____ and kingdom _____.
a.) Eukarya ... Fungi
b.) Eukarya ... Protista
c.) Eukarya ... Plantae
d.) Eukarya ... Animalia
e.) Bacteria ... Archaea - correct answer ✔✔ c.) Eukarya ... Plantae
,Which Domain(s) includes unicellular orgainsms?
a.)Eukarya.
b.) Eukarya, Archaea, and Bacteria.
c.) Archaea.
d.) Archaea and Bacteria only.
e.) Bacteria. - correct answer ✔✔ b.) Eukarya, Archaea, and Bacteria.
Fungi are classified into which Domain?
a.) Eukarya
b.) Archaea.
c.) Bacteria
d.) Eukarya and Archaea.
e.) Eukarya and Bacteria. - correct answer ✔✔ a.) Eukarya
There is (are) _____ eukaryotic domain(s).
a.) one
b.) two
c.) three
d.) four
e.) five - correct answer ✔✔ a.) one
,Scientists use a general process known as ______to ask and answer questions about nature. -
correct answer ✔✔ scientific inquiry
Using a type of logic known as ______, a generalized conclusion can often be drawn from a
large number of specific observations. - correct answer ✔✔ inductive reasoning
A(n) ______ is a proposed explanation for a set of observations. It leads to predictions that can
be tested by additional observations or by experiments. - correct answer ✔✔ hypothesis
_______uses ''if . . . then'' logic to proceed from a general hypothesis to specific predictions of
results that can be expected if the general premise is true. - correct answer ✔✔ Deductive
reasoning
A hypothesis must be testable and ________--there must be some observation or experiment
that could show that it is not true. - correct answer ✔✔ falsifiable
A(n) _______ involves both an experimental group and a control group, which are alike except
for the one variable that the experiment is designed to test. - correct answer ✔✔ controlled
experiment
A(n) _______ is broader in scope than a hypothesis, is supported by a large body of evidence,
and generates many new hypotheses. - correct answer ✔✔ theory
Drug-resistant tuberculosis is a major health issue in many countries. Treatment for these
resistant forms of bacteria is longer and requires more expensive antibiotics. Scientists attribute
this to natural selection. Under these circumstances, what does natural selection mean?
a.) Tuberculosis bacteria discovered a way to avoid these particular antibiotics.
, b.) An environment was created in which the tuberculosis bacterium carrying the antibiotic-
resistant genes had an increased likelihood of survival and reproduction.
c.) The tuberculosis genes mutated to avoid being killed by the antibiotic.
d.) The antibiotic changed the DNA of the tuberculosis bacterium. - correct answer ✔✔ b.) An
environment was created in which the tuberculosis bacterium carrying the antibiotic-resistant
genes had an increased likelihood of survival and reproduction.
In the figure below, what leads directly to the reproductive success of these beetles?
Three figures show an example of natural selection in action. The first one has many similar
white, gray, and black beetles, a population with varied inherited traits. The second figure
shows how a bird eats white beetles from that population eliminating individuals with certain
traits. And the third figure shows how only gray and black beetles remained leading to the
reproduction of survivors.
View Available Hint(s)
a.) Some of the beetles found a better habitat than the others.
b.) All the beetles are reproducing in great numbers.
c.) The beetles' natural predators are dying out.
d.) The beetles with traits best suited to the environment survive. - correct answer ✔✔ d.) The
beetles with traits best suited to the environment survive.
Which of the following statements accurately describes a typical gene?
correct answers
Prokaryotic cells are found in the domain(s) _____.
a.) Bacteria and Archaea
b.) Bacteria and Eukarya
c.) Bacteria and Protista
d.) Bacteria
e.) Protista and Archaea - correct answer ✔✔ a.) Bacteria and Archaea
A human is classified in domain _____ and kingdom _____.
a.) Eukarya ... Fungi
b.) Eukarya ... Protista
c.) Eukarya ... Plantae
d.) Eukarya ... Animalia
e.) Bacteria ... Archaea - correct answer ✔✔ d.) Eukarya ... Animalia
A rose bush is classified in domain _____ and kingdom _____.
a.) Eukarya ... Fungi
b.) Eukarya ... Protista
c.) Eukarya ... Plantae
d.) Eukarya ... Animalia
e.) Bacteria ... Archaea - correct answer ✔✔ c.) Eukarya ... Plantae
,Which Domain(s) includes unicellular orgainsms?
a.)Eukarya.
b.) Eukarya, Archaea, and Bacteria.
c.) Archaea.
d.) Archaea and Bacteria only.
e.) Bacteria. - correct answer ✔✔ b.) Eukarya, Archaea, and Bacteria.
Fungi are classified into which Domain?
a.) Eukarya
b.) Archaea.
c.) Bacteria
d.) Eukarya and Archaea.
e.) Eukarya and Bacteria. - correct answer ✔✔ a.) Eukarya
There is (are) _____ eukaryotic domain(s).
a.) one
b.) two
c.) three
d.) four
e.) five - correct answer ✔✔ a.) one
,Scientists use a general process known as ______to ask and answer questions about nature. -
correct answer ✔✔ scientific inquiry
Using a type of logic known as ______, a generalized conclusion can often be drawn from a
large number of specific observations. - correct answer ✔✔ inductive reasoning
A(n) ______ is a proposed explanation for a set of observations. It leads to predictions that can
be tested by additional observations or by experiments. - correct answer ✔✔ hypothesis
_______uses ''if . . . then'' logic to proceed from a general hypothesis to specific predictions of
results that can be expected if the general premise is true. - correct answer ✔✔ Deductive
reasoning
A hypothesis must be testable and ________--there must be some observation or experiment
that could show that it is not true. - correct answer ✔✔ falsifiable
A(n) _______ involves both an experimental group and a control group, which are alike except
for the one variable that the experiment is designed to test. - correct answer ✔✔ controlled
experiment
A(n) _______ is broader in scope than a hypothesis, is supported by a large body of evidence,
and generates many new hypotheses. - correct answer ✔✔ theory
Drug-resistant tuberculosis is a major health issue in many countries. Treatment for these
resistant forms of bacteria is longer and requires more expensive antibiotics. Scientists attribute
this to natural selection. Under these circumstances, what does natural selection mean?
a.) Tuberculosis bacteria discovered a way to avoid these particular antibiotics.
, b.) An environment was created in which the tuberculosis bacterium carrying the antibiotic-
resistant genes had an increased likelihood of survival and reproduction.
c.) The tuberculosis genes mutated to avoid being killed by the antibiotic.
d.) The antibiotic changed the DNA of the tuberculosis bacterium. - correct answer ✔✔ b.) An
environment was created in which the tuberculosis bacterium carrying the antibiotic-resistant
genes had an increased likelihood of survival and reproduction.
In the figure below, what leads directly to the reproductive success of these beetles?
Three figures show an example of natural selection in action. The first one has many similar
white, gray, and black beetles, a population with varied inherited traits. The second figure
shows how a bird eats white beetles from that population eliminating individuals with certain
traits. And the third figure shows how only gray and black beetles remained leading to the
reproduction of survivors.
View Available Hint(s)
a.) Some of the beetles found a better habitat than the others.
b.) All the beetles are reproducing in great numbers.
c.) The beetles' natural predators are dying out.
d.) The beetles with traits best suited to the environment survive. - correct answer ✔✔ d.) The
beetles with traits best suited to the environment survive.
Which of the following statements accurately describes a typical gene?
