AnswersFall 24 GSE Biology B-ICLab: Natural Selection-Standard Bio 4.2

Plant Structures Answers

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Citrus trees are angiosperms and dicots. Which characteristic would citrus trees have?

A
flower petals in multiples of three
B
herbaceous or woody stems
C
parallel veins on the leaves
D
one cotyledon in the seed
3

Which evolutionary adaptations helped plants succeed and spread on land?

A
vascular tissue and seeds
B
spores and pine cones
C
small size and small seeds
D
cotyledons and nonvascular tissue
5

Which is an innovation of gymnosperms?

A
Gymnosperms are the first seed plants.
B
Gymnosperms are the first flowering plants.
C
Gymnosperms are the first vascular plants.
D
Gymnosperms are the first spore-bearing plants.
6

Which best describes plant classification?

A
Nonvascular plants are grouped into seedless and seeded plants.
B
Seedless plants are grouped into gymnosperms and angiosperms.
C
Gymnosperms are grouped into monocots and dicots.
D
Angiosperms are grouped into monocots and dicots.
7

Orchids are a recently evolved plant that have a novel feature known as aerial roots. What is the most likely function of an orchid's specialized roots?

A
Aerial roots are the site of energy synthesis.
B
Aerial roots allow the orchid to attach itself to trees.
C
Aerial roots produce food for the orchid through photosynthesis.
D
Aerial roots anchor the orchid to the ground.
8

Which of these gymnosperms are known to be important in maintaining the balance of carbon in an ecosystem?

A
garden flowering plants
B
ferns and liverworts
C
mosses and horsetails
D
redwood tree forests
10

Which best explains the evolution of gymnosperm plants?

A
They evolved at the same time as monocots and dicots.
B
They evolved after the seeded flowering plants.
C
They evolved after the seedless vascular plants.
D
They evolved before the seedless nonvascular plants.
11

This plant is Malva assurgentiflora, an endangered plant found in California. Based on the photo, which type of plant is Malva assurgentiflora?

Question illustration
A
bryophyte
B
gymnosperm
C
monocot
D
dicot
12

Orchids are a recently evolved plant that have a novel feature known as aerial roots. What is the most likely function of an orchid's specialized roots?

A
Aerial roots are the site of energy synthesis.
B
Aerial roots allow the orchid to attach itself to trees.
C
Aerial roots produce food for the orchid through photosynthesis.
D
Aerial roots anchor the orchid to the ground.
13

Which group of plants were the first to adapt to life on land?

A
flowering
B
pine
C
mosses
D
conifers
14

Citrus trees are angiosperms and dicots. Which characteristic would citrus trees have?

A
flower petals in multiples of three
B
herbaceous or woody stems
C
parallel veins on the leaves
D
one cotyledon in the seed
15

This diagram shows how seed plants are grouped. Which is the missing label?

Question illustration
A
Bryophytes
B
Angiosperms
C
Pteridophytes
D
Monocots
16

Which evolutionary adaptations helped plants succeed and spread on land?

A
vascular tissue and seeds
B
spores and pine cones
C
small size and small seeds
D
cotyledons and nonvascular tissue
17

A newly discovered tree species has cone-like structures that are covered with exposed seeds. Which plant group does it most likely belong to?

A
pteridophytes
B
gymnosperms
C
angiosperms
D
bryophytes
18

Which best describes plant classification?

A
Nonvascular plants are grouped into seedless and seeded plants.
B
Seedless plants are grouped into gymnosperms and angiosperms.
C
Gymnosperms are grouped into monocots and dicots.
D
Angiosperms are grouped into monocots and dicots.
19

The fossil of a plant reveals that it produced spores that were used for reproduction. Which type of plant was it?

A
seed
B
seedless
C
monocot
D
dicot
20

Which of these gymnosperms are known to be important in maintaining the balance of carbon in an ecosystem?

A
garden flowering plants
B
ferns and liverworts
C
mosses and horsetails
D
redwood tree forests

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