Human Health — Cumulative exam Answers

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1
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A dichotomous key uses

A
inferences.
B
DNA sequences.
C
subjective descriptions.
D
observable characteristics.
2
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Sucrose is made of which simple sugars?

A
glucose and fructose
B
fructose and galactose
C
galactose and cellulose
D
cellulose and glucose
3

Which is an advantage of flowering plants?

A
Flowers attract insects that transport gametes.
B
Flowers give greater access to sunlight.
C
Flowers help transport water and nutrients.
D
Flowers assist plants that live in the water.
4

How can a person donate blood and never run out of it?

A
Blood components are continuously pumped by the heart.
B
Blood components are continuously circulated through the blood vessels.
C
Blood components are continuously produced in the bone marrow.
D
Blood components are continuously digested by enzymes.
5

Which virus is correctly matched with its structure?

A
HIV—helical shape
B
polio—polyhedral shape
C
Ebola—complex shape
D
bacteriophage—enveloped shape
6

How many homologous chromosome alignments are possible for independent assortment during meiosis?

A
one
B
two
C
three
D
four
7

Which autonomic system conserves energy by returning the body to a normal activity level through a lowered heart rate and blood pressure?

A
peripheral nervous system
B
sympathetic nervous system
C
somatic nervous system
D
parasympathetic nervous system
8

Consider the phylogenetic tree.Which pair of organisms is most closely related to primates?

Question illustration
A
amphibians and rodents
B
crocodiles and amphibians
C
rodents and rabbits
D
dinosaurs and birds
9

Which are produced as a result of meiosis?

A
zygotes
B
chromosomes
C
tetrads
D
gametes
10

Which of the following is an example of adaptive radiation?

A
One population of squirrels becomes two separate species over a long time.
B
One population of lizards forms 15 separate species over a short time.
C
One species of birds becomes better suited to its environment over time.
D
One species of fish forms when two species of fish begin to breed with each other.
11

For which form of reproduction is a mate required?

A
asexual reproduction
B
sexual reproduction
C
mitosis
D
binary fission
12

Which most clearly shows evolutionary relationships between species?

A
binomial nomenclature
B
phylogenetic tree
C
common name
D
morphological data
13

Which is most likely a source of air pollution?

A
littering
B
CFCs
C
oil spill
D
runoff
14

Which substance is a compound?

A
salt
B
phosphorus
C
sulfur
D
oxygen
15

Suzanne has type A– blood. Which blood type could she receive in a blood transfusion?

A
A+
B
O–
C
O+
D
B–
16

Which of the following lists the levels of organizational hierarchy from most complex to least complex?

A
population, organism, ecosystem
B
biosphere, community, organism
C
biome, population, biosphere
D
population, ecosystem, community
17

Which scientist disproved the idea that life comes from nonlife?

A
Anton van Leeuwenhoek
B
Louis Pasteur
C
Robert Koch
D
Paul Ehrlich
18

Which is the correct order of processes that occur as water moves from a lake to a cloud and then back to Earth's surface?

A
evaporation, condensation, precipitation
B
condensation, evaporation, precipitation
C
precipitation , condensation, evaporation
D
evaporation, precipitation, condensation
19

During transcription, what happens to the RNA polymerase if a repressor protein attaches to the operator?

A
It begins transcription.
B
It begins translation.
C
It cannot attach to enzyme 1.
D
It cannot attach to the promoter.
20

The vertebrae are the irregularly shaped bones that make up the spine. To which skeletal system do the vertebrae belong?

A
spongy skeleton
B
compact skeleton
C
axial skeleton
D
appendicular skeleton

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