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 Reading Chapters 20, 21, 22

 Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

 ____    1.   A ripened ovary that contains seeds is called a(an)

a.

embryo.

b.

seed.

c.

fruit.

d.

vegetable.

  

____    2.   What fruit-eating animal likely would ensure the widest dispersal of a plantís seeds?

a.

a rat

b.

a raccoon

c.

a bird

d.

a squirrel

 

 ____    3.   In an angiosperm, pollen grains are produced in the

a.

stigma.

b.

filament.

c.

carpel.

d.

anther.

 

 ____    4.   When a plant moves sugars from its leaves to its roots, the sink is the

a.

leaves.

b.

roots.

c.

stems.

d.

same as the source.

  

____    5.   Epiphytes differ from parasites in that epiphytes

a.

harm their host plants.

b.

grow directly on the bodies of other plants.

c.

extract water from their host plants.

d.

produce their own food.

  

____    6.   Oxygen and carbon dioxide diffuse in and out of a leaf through the

a.

parenchyma cells.

b.

guard cells.

c.

phloem.

d.

stomata.

  

____    7.   A plant that is magnesium-deficient is unable to

a.

synthesize chlorophyll.

b.

stand upright.

c.

produce flowers.

d.

produce healthy roots.

  

____    8.   The response of a plant to changes in the length of day or night is called

a.

phototropism.

b.

thigmotropism.

c.

photosynthesis.

d.

photoperiodism.

  

____    9.   The growth patterns of plants such as ivy and pole beans are regulated by

a.

gravitropism.

b.

phototropism.

c.

thigmotropism.

d.

all of the above

 

 ____   10.   Charles Darwin and his son Francis studied

a.

techniques to increase seed formation in oats.

b.

flowering in orchids.

c.

the response of grass seedlings to light.

d.

fruit production in apples.

Exploring Life - Reading Homework Quiz

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Name

Class Period 
1 2 3 4 5 6 7 8

Question 1
A B C D E F G H

Question 2
A B C D E F G H

Question 3
A B C D E F G H

Question 4
A B C D E F G H

Question 5
A B C D E F G H

Question 6
A B C D E F G H

Question 7
A B C D E F G H

Question 8
A B C D E F G H

Question 9
A B C D E F G H

Question 10
A B C D E F G H
 

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