Name _______________________________Class __________________ Date __________________
Section 2: Classification of Plants
Study Guide 20-2
Circle the letter of the phrase that best completes the sentence.
1. Seedless plants require ____________ to reproduce.
a. water
b. fertilizer
c. dry conditions
d. bright sunshine
2. Nonvascular plants obtain water and nutrients by ____________.
a. absorbing them through roots
b. fertilization
c. absorbing them directly
d. absorbing them from bacteria
3. Seedless nonvascular plants include liverworts, hornworts, and ____________.
a. fungi
b. phyla
c. pollen
d. mosses
4. Having a ____________ allows plants to grow higher above the ground than nonvascular plants.
a. vascular system
b. cuticle
c. fiddlehead
d. spore
Plant Type
Phylum Name
Characteristics
club mosses
5.
Oldest living group of
____________ nonvascular plants
Some look like tiny pine
trees
ferns
6.
The most successful
____________ survivors of the
Carboniferous period
Have large leaves called
fronds
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Holt McDougal Biology
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Plant Diversity
Name _______________________________Class __________________ Date __________________
Study Guide A continued
MAIN IDEA: Seed plants include cone-bearing plants and flowering plants.
7. _________ is the process that allows seed plants to reproduce without depending on water to carry
sperm to eggs for fertilization.
a. Pollination
b. A vascular system
c. Spore production
d. A leaf cuticle
Fill in the blanks with the phylum name of each group of seed plants described in the table below.
Plant Type
Phylum Name
Characteristics
cycads
8. _______________
Cone-bearing
Provided food for dinosaurs
ginkgo
9. _______________
Cone-bearing
Only one living species
conifers
10. _______________
Cone-bearing
Trees with needle-like leaves
flowering plants 11. _______________
pollination
cone
Produce flowers and fruit
flower
fruit
Write the correct term from the box above next to the phrase that describes it.
______________ 12. mature ovary of flower
______________ 13. process in which pollen meets female parts of same plant
species
______________ 14. reproductive structure of most gymnosperms
______________ 15. reproductive structure of angiosperms
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Holt McDougal Biology
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Plant Diversity
Name ______________________________ Class ___________________ Date __________________
Section 3: Diversity of Flowering Plants
Study Guide 20-3
MAIN IDEA: Flowering plants have unique adaptations that allow them to
dominate in today’s world.
Fill in the Concept Map below about the adaptations of flowering plants. Choose
from the following terms and phrases: seed dispersal, flowers, fruit, pollination.
Flowering plants
have
have
3. ________________
1. ________________
which can allow for more efficient
which plays a role in
2. ________________
4. __________________
MAIN IDEA: Botanists classify flowering plants into two groups based on
seed type.
Fill in the boxes with the number of cotyledons found in each type of
flowering plant.
Type of
Flowering Plant
Number of
Cotyledons
Other Characteristics
5. monocot
Long, narrow leaves with parallel veins
6. dicot
Leaves with netlike veins
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Holt McDougal Biology
1
Plant Diversity
Name ______________________________ Class ___________________ Date __________________
Study Guide A continued
MAIN IDEA: Flowering plants are also categorized by stem type and lifespan.
7. Flowering plants are categorized by seed type, stem type, and ____________.
a. color
b. lifespan
c. shape
d. pollination
8. Flowering plants that do not produce wood have ____________ stems.
a. lignin
b. thick
c. woody
d. herbaceous
Complete the table by filling in the blanks with the plant lifespan that corresponds
to each description.
Lifespan
Characteristics
Examples
9. ___________
Entire lifespan takes place in one
year
Corn, lettuce, zinnias
10. ___________
Entire lifespan takes place in two
years
Carrots
11. ___________
Lifespan lasts more than two years
Trees
Vocabulary Check
Fill in the blank with the word or phrase that best completes the sentence.
12. A(n) _____________________ is an embryonic leaf inside a seed.
13. ________________ is a fibrous material made of dead cells from a plant’s
vascular system.
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Holt McDougal Biology
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Plant Diversity