Question 1

What are some examples of ways that plant effect ecosystems?

Accepted Answer

Plants produce oxygen and remove carbon

Question 2

All of the following are floral organs except

Accepted Answer

A)  sepals. 
B)  petals. 
C)  stamens. 
D)  scales. 
E)  carpels. 
A)  sepals. 
B)  petals. 
C)  stamens. 
D)  scales. 
E)  carpels.

Question 3

Compare the role of male and female cones in the reproduction of a type of conifer, a ponderosa pine.Be sure to describe contributions made by the male gametophyte and female gametophytes during this process.

Accepted Answer

Female cones, or megastrobili, are compo

Question 4

Rank gymnosperm groups in order from the one with the lowest number of extant species to the one with the highest.

Accepted Answer

A)  Conifers < gnetophytes < ginkgos < cycads 
B)  Gnetophytes < ginkgos < conifers < cycads 
C)  Gnetophytes < ginkgos < cycads < conifers 
D)  Ginkgos < gnetophytes < conifers < cycads 
E)  Ginkgos < gnetophytes < cycads < conifers 
A)  Conifers < gnetophytes < ginkgos < cycads 
B)  Gnetophytes < ginkgos < conifers < cycads 
C)  Gnetophytes < ginkgos < cycads < conifers 
D)  Ginkgos < gnetophytes < conifers < cycads 
E)  Ginkgos < gnetophytes < cycads < conifers

Question 5

The seeds of gymnosperms and angiosperms originate in _______ and _______, respectively.

Accepted Answer

A)  flowers; cones 
B)  leaves; cones 
C)  stems; roots 
D)  cones; flowers 
E)  cones; stamens 
A)  flowers; cones 
B)  leaves; cones 
C)  stems; roots 
D)  cones; flowers 
E)  cones; stamens

Question 6

The two major clades of angiosperms-monocots and eudicots-differ from each other in the number of

Accepted Answer

A)  sperm involved in fertilization. 
B)  sexes per plant; monocots have one sex per plant and eudicots have both. 
C)  sexes per plant; eudicots have male and female plants, and monocots have both sexes in one plant. 
D)  embryonic cotyledons. 
E)  tracheid types. 
A)  sperm involved in fertilization. 
B)  sexes per plant; monocots have one sex per plant and eudicots have both. 
C)  sexes per plant; eudicots have male and female plants, and monocots have both sexes in one plant. 
D)  embryonic cotyledons. 
E)  tracheid types.

Question 7

Refer to the figure.   Shown is a fruit from a maple tree.Visible are two seeds surrounded by thin papery fruit.Based on this body plan, what is the most likely method of seed dispersal in this tree?

Accepted Answer

A)  Water 
B)  Insect 
C)  Mammal 
D)  Bird 
E)  Wind 
A)  Water 
B)  Insect 
C)  Mammal 
D)  Bird 
E)  Wind

Question 8

Refer to the figure.   What is the name of the floral part where the megasporangium resides? Identify its label.

Accepted Answer

A)  Stigma (
A)  
B)  Ovary (
C)  
C)  Ovule (
D)  
D)  Anther (F) 
E)  Sepal (H) 
A)  Stigma (
A)  
B)  Ovary (
C)  
C)  Ovule (
D)  
D)  Anther (F) 
E)  Sepal (H)

Question 9

Conifers and flowers produce their megagametophytes on modified _______ and _______, respectively.

Accepted Answer

A)  stems; leaves 
B)  leaves; stems 
C)  roots; stems 
D)  petioles; leaves 
E)  stems; stems 
A)  stems; leaves 
B)  leaves; stems 
C)  roots; stems 
D)  petioles; leaves 
E)  stems; stems

Question 10

Another name for a female cone is a _______.If pine trees lacked the woody scales of these structures, their seeds would be entirely unprotected.

Accepted Answer

The answer of Another name for a female cone is...

Question 11

The sterile sporophyte structures that surround the megasporangium are called the _______.

Accepted Answer

The answer of The sterile sporophyte structures that surround the...

Question 12

A newly discovered species of vascular plant is wind-pollinated.Thus you conclude that this plant

Accepted Answer

A)  releases its pollen in an enclosed space. 
B)  has the same pollination method as most gymnosperms. 
C)  has the same pollination method as most flowering plants. 
D)  produces few pollen grains. 
E)  possesses pollen with flagellated sperm. 
A)  releases its pollen in an enclosed space. 
B)  has the same pollination method as most gymnosperms. 
C)  has the same pollination method as most flowering plants. 
D)  produces few pollen grains. 
E)  possesses pollen with flagellated sperm.

Question 13

During what period did angiosperms emerge as the dominant plants on Earth?

Accepted Answer

A)  Cretaceous 
B)  Tertiary 
C)  Quaternary 
D)  Permian 
E)  Cambrian 
A)  Cretaceous 
B)  Tertiary 
C)  Quaternary 
D)  Permian 
E)  Cambrian

Question 14

You examine the reproductive structures of a newly discovered seed plant and find motile, swimming sperm.With which two groups of living seed plants should you consider grouping this plant?

Accepted Answer

A)  Cycads and angiosperms 
B)  Cycads and conifers 
C)  Conifers and angiosperms 
D)  Ginkgos and cycads 
E)  Gnetophytes and ginkgos 
A)  Cycads and angiosperms 
B)  Cycads and conifers 
C)  Conifers and angiosperms 
D)  Ginkgos and cycads 
E)  Gnetophytes and ginkgos

Question 15

Seed plants

Accepted Answer

A)  produce one kind of spore. 
B)  produce spores in small numbers. 
C)  produce gametes by meiosis. 
D)  have a large gametophyte generation. 
E)  produce spores by meiosis. 
A)  produce one kind of spore. 
B)  produce spores in small numbers. 
C)  produce gametes by meiosis. 
D)  have a large gametophyte generation. 
E)  produce spores by meiosis.

Question 16

The male and female flowers of a newly-discovered tomato species are arranged such that the chance of self-pollination is minimized, and the chance of wind pollination is maximized.It likely that male flowers of this species are found _______ and the fruit-producing female flowers are found _______.

Accepted Answer

A)  lower on the plant; higher on the plant 
B)  just below the female flowers; all over the plant 
C)  at about the same level as the female flowers; at different times of the year 
D)  higher on the plant; lower on the plant 
E)  higher on the plant; next to the male flowers 
A)  lower on the plant; higher on the plant 
B)  just below the female flowers; all over the plant 
C)  at about the same level as the female flowers; at different times of the year 
D)  higher on the plant; lower on the plant 
E)  higher on the plant; next to the male flowers

Question 17

A paleobotanist's discovery of a layer of sediment from the Quaternary containing fossilized seed fern seeds would be unexpected because

Accepted Answer

A)  no such plants ever existed. 
B)  seed ferns were extinct by the Quaternary. 
C)  all material from the Quaternary should be rock, not sediment. 
D)  seed fern seeds are too soft to fossilize. 
E)  Quaternary sediments do not have fossils. 
A)  no such plants ever existed. 
B)  seed ferns were extinct by the Quaternary. 
C)  all material from the Quaternary should be rock, not sediment. 
D)  seed fern seeds are too soft to fossilize. 
E)  Quaternary sediments do not have fossils.

Question 18

Quinine, the active ingredient from the bark of the Cinchona tree, is the standard remedy for

Accepted Answer

A)  malaria. 
B)  leukemia. 
C)  lymphoma. 
D)  syphilis. 
E)  ovarian cancer. 
A)  malaria. 
B)  leukemia. 
C)  lymphoma. 
D)  syphilis. 
E)  ovarian cancer.

Question 19

Most angiosperm species are included in two large lineages: the monocots and the _______.

Accepted Answer

The answer of Most angiosperm species are included in two...

Question 20

Seeds tend to germinate when environmental conditions are favorable.What is the most logical reason that the lodgepole pine has evolved cones that open only after exposure to fire?

Accepted Answer

A)  Fire produces new clearings that would reduce competition for light. 
B)  Fire clears away potential predators of the newly emerging seedlings. 
C)  Lodgepole pine became established in high-fire-risk zones and evolved a way to protect their seeds until after a fire has passed. 
D)  Lodgepole pine is fire-tolerant, and the requirement of fire for seed germination is an artifact of the parental generation's fire resistance. 
E)  Fire-induced seed germination ensures that an entire year will pass before seedlings emerge, ensuring adequate weather conditions for plant survival. 
A)  Fire produces new clearings that would reduce competition for light. 
B)  Fire clears away potential predators of the newly emerging seedlings. 
C)  Lodgepole pine became established in high-fire-risk zones and evolved a way to protect their seeds until after a fire has passed. 
D)  Lodgepole pine is fire-tolerant, and the requirement of fire for seed germination is an artifact of the parental generation's fire resistance. 
E)  Fire-induced seed germination ensures that an entire year will pass before seedlings emerge, ensuring adequate weather conditions for plant survival.

Exam 28: The Evolution of Seed Plants

What are some examples of ways that plant effect ecosystems?

All of the following are floral organs except

Compare the role of male and female cones in the reproduction of a type of conifer, a ponderosa pine.Be sure to describe contributions made by the male gametophyte and female gametophytes during this process.

Rank gymnosperm groups in order from the one with the lowest number of extant species to the one with the highest.

The seeds of gymnosperms and angiosperms originate in _______ and _______, respectively.

The two major clades of angiosperms-monocots and eudicots-differ from each other in the number of

Refer to the figure. Shown is a fruit from a maple tree.Visible are two seeds surrounded by thin papery fruit.Based on this body plan, what is the most likely method of seed dispersal in this tree?

Refer to the figure. What is the name of the floral part where the megasporangium resides? Identify its label.

Conifers and flowers produce their megagametophytes on modified _______ and _______, respectively.

Another name for a female cone is a _______.If pine trees lacked the woody scales of these structures, their seeds would be entirely unprotected.

The sterile sporophyte structures that surround the megasporangium are called the _______.

A newly discovered species of vascular plant is wind-pollinated.Thus you conclude that this plant

During what period did angiosperms emerge as the dominant plants on Earth?

You examine the reproductive structures of a newly discovered seed plant and find motile, swimming sperm.With which two groups of living seed plants should you consider grouping this plant?

Seed plants

A paleobotanist's discovery of a layer of sediment from the Quaternary containing fossilized seed fern seeds would be unexpected because

Quinine, the active ingredient from the bark of the Cinchona tree, is the standard remedy for

Most angiosperm species are included in two large lineages: the monocots and the _______.

Seeds tend to germinate when environmental conditions are favorable.What is the most logical reason that the lodgepole pine has evolved cones that open only after exposure to fire?

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Communication and Multicellularity

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinant Dna and Biotechnology

Mechanisms of Evolution

Reconstructing and Using Phylogenies

Speciation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution and Diversity of Fungi

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

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Immunology: Animal Defense Systems

Animal Reproduction

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Neurons, Glia, and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Functions

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Salt and Water Balance and Nitrogen Excretion

Animal Behavior

The Physical Environment and Biogeography of Life

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A Changing Biosphere

Filters

The seeds of gymnosperms and angiosperms originate in _ and _, respectively.

Conifers and flowers produce their megagametophytes on modified _ and _, respectively.