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Question 1
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All of the following statements about modern corn are true except _
_.
Select one:
a. It comes from a wild grass called
teosinte
b. It is
little
changed
from
teosinte
c. It is America's number one field crop
d. It is an allotetraploid
e. Its artificial selection began between 4,000 and 3,000 BC
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The correct answer is: It is little changed from teosinte
Question 2
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What is the result of breeding two closely related
species? Select one:
a. an alloploid
b. a
polyploid
c.
a hybrid
d. an autoploid
e. a sub-species
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The correct answer is: a hybrid
Question 3
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What does "e" represent in the figure of the
amniotic egg? Select one:
a. structure where gas exchange occurs
b. structure which stores waste
c. structure which protects from the
environment
d.
structure
which
removes
nitrogenous
waste
e. structure which stores nutrients
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The correct answer is: structure which removes nitrogenous waste
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Question4
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An animal with a body cavity completely lined with mesoderm such as molluscs are _
_.
Select one:
a.
coelomates
b. deuterostomes
c. radial symmetry
d. acoelomates
e. pseudocoelomates
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The correct answer is: coelomates
Question5
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Identify “d” in the figure of chordate
characteristics. Select one:
a.
pharyngeal
pouches
b. vertebral column
c. notochord
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d. postanal tail
e. dorsal tubular nerve cord
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The correct answer is: pharyngeal pouches