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Cumulative Exam — Cumulative exam Answers

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21
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Which is accurate about the six kingdoms?

A
One is eukaryotic, and five are prokaryotic.
B
Four are eukaryotes, and two are prokaryotes.
C
Four are prokaryotes, and two are eukaryotes.
D
Three are eukaryotes, and three are prokaryotes.
22
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For which form of reproduction is a mate required?

A
asexual reproduction
B
sexual reproduction
C
mitosis
D
binary fission
23

What observation led researchers to propose that chloroplasts evolved from cyanobacteria?

A
Both produce proteins.
B
Both contain mitochondria.
C
Both provide structure to cells.
D
Both perform photosynthesis.
24

When comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. Which combination of evidence would most strongly support this idea?

A
comparable anatomies, fossils, and behavior
B
different anatomies, similar development, and different DNA
C
comparable anatomies, similar development, and similar DNA
D
different anatomies, fossils, and behavior
25

Which most clearly shows evolutionary relationships between species?

A
binomial nomenclature
B
phylogenetic tree
C
common name
D
morphological data
26

During which process is ethanol produced?

A
lactic acid fermentation
B
alcohol fermentation
C
citric acid cycle
D
electron transport chain
27

Which statement is most accurate about alternation of generations?

A
It involves changing the total number of chromosomes in a plant cell.
B
It refers to the haploid and diploid phases of the plant life cycle.
C
It refers to the processes of meiosis and fertilization.
D
It involves only some of the seedless vascular plants.
28

Which best describes fetal development?

A
The heart beats and is heard during the first trimester.
B
The heart beats and is heard during the second trimester.
C
The heart beats during the first trimester, but is heard in the second trimester.
D
The heart beats during the second trimester, and is heard in the third trimester.
29

Which is required for sexual reproduction?

A
mitosis
B
binary fission
C
diploid cell production
D
meiosis
30

Which statement correctly describes the electrons in a water molecule?

A
Electrons are pulled closer to the hydrogen atoms.
B
Electrons are pulled closer to the oxygen atom.
C
Electrons are located inside the nucleus of the hydrogen atoms.
D
Electrons are located inside the nucleus of the oxygen atoms.
31

Which of these can be found in both gymnosperms and angiosperms?

A
vascular tissue and exposed seeds
B
vascular tissue and seeds
C
flowers and vascular tissue
D
enclosed seeds and flowers
32

How is the world population projected to change in the next few decades?a.It is projected to level off.b.It is projected to decrease steadily.c.It is projected to increase steadily.d.It is projected to double within 5 years.

A
A
B
B
C
C
D
D
33

Which organisms are prokaryotes?

A
archaea
B
fungi
C
protists
D
plants
34

If a scientist wanted to follow Mendel’s experiment with a different kind of plant, which type of plant would she examine?

A
A plant that cannot self-pollinate.
B
A plant that has only recessive alleles.
C
A plant that has three alleles for a trait.
D
A plant that has only two alleles for a trait.
35

A news article discussed a genetically engineered medicine that is used to enhance the production of antibodies that are used against disease. Which medicine can this article be about?

A
insulin
B
flu shot
C
penicillin
D
human growth hormone
36

In which plants' life cycle does double fertilization occur?

A
seedless plants
B
nonvascular plants
C
gymnosperm plants
D
angiosperm plants
37

Which statement describes the F1 generation of a Mendelian monohybrid cross between two true-breeding parents?

A
Only the dominant trait is visible in the F1 generation.
B
Only the recessive trait is visible in the F1 generation.
C
Neither the dominant nor recessive trait is visible in the F1 generation.
D
Both the dominant and recessive traits are visible in the F1 generation.
38

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. A pansy that is homozygous for purple flowers (PP) is crossed with a pansy that is homozygous for pink flowers (pp). Which genotypes will be included for the offspring in the Punnett square for this cross?

Question illustration
A
PP, Pp, and pp
B
PP and pp
C
PP and Pp
D
Pp only
39

How does cell technology affect government?

A
New government agencies must be created to fund and regulate each type of technology.
B
A new technology may reduce the amount of money that a hospital needs to operate.
C
Discoveries that are made through cell technology sometimes result in new regulations.
D
New cell technologies might reduce the number of government health-care agencies.
40

What is the relationship between coronary artery disease and a heart attack?

A
Coronary artery disease is a symptom of heart attacks.
B
Heart attacks reduce blood flow to the heart and cause coronary artery disease.
C
Coronary artery disease can reduce blood flow to the heart and cause heart attacks.
D
Heart attacks occur when coronary artery disease is treated.

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