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Flowers and fruits are unique to


A) angiosperms.
B) bryophytes.
C) gymnosperms.
D) conifers.
E) cycads.

F) A) and C)
G) A) and E)

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A plant embryo (young sporophyte) packaged with a food supply in a tough outer coat is a


A) flower.
B) pollen grain.
C) seed.
D) sperm.
E) fruit.

F) A) and D)
G) B) and E)

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C

Which of the following is NOT a way plants affect life on Earth?


A) Top of food webs
B) Habitat for microscopic and macroscopic organisms
C) Fuel source directly as nutrition and indirectly as wood and coal
D) Prevent erosion of landscape by rooting into soil and other substrates
E) Provide oxygen that forms the ozone layer

F) A) and C)
G) B) and D)

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Bryophytes lack vascular tissue and lignin and therefore cannot


A) sexually reproduce.
B) grow tall.
C) asexually reproduce.
D) produce a gametophyte stage.
E) produce a sporophyte stagE.

F) A) and E)
G) C) and E)

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B

In bryophytes,the sporophyte is conspicuous or dominant.

A) True
B) False

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With few exceptions,which of the following is not a characteristic of plants?


A) They are multicellular organisms.
B) They are autotrophs.
C) They are eukaryotes.
D) They are heterotrophs.
E) They carry out photosynthesis.

F) A) and B)
G) C) and D)

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What advantage do ferns have over bryophytes?


A) Ferns photosynthesize.
B) Ferns are heterotrophs.
C) Ferns have a vascular system,which allow them to grow taller.
D) Ferns do not require water to reproduce.
E) Ferns have alternation of generations.

F) All of the above
G) A) and B)

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A cotyledon is


A) the first leaf structure to arise in the embryo of an angiosperm.
B) a spore-like structure used for reproduction in plants.
C) the fruit produced by flowers of angiosperms.
D) a tissue fragment of tissue used for reproduction in bryophytes.
E) the zygote formed in ferns from the union of two gametes.

F) A) and D)
G) A) and E)

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______ transport sugars produced by photosynthesis to the non-green parts of the plant.


A) Stomata
B) Roots
C) Phloem
D) Xylem
E) Cuticle

F) A) and B)
G) A) and C)

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Plants and algae most recently shared a common ancestor 480 million years ago,and plants colonized land shortly after that.Light,water,minerals,and dissolved gases surround the whole body of a submerged green alga,and the buoyancy of water provides physical support.What part did plants evolve to absorb water and minerals on dry land?


A) stomata
B) pollen
C) vascular tissues
D) cuticle
E) lignin

F) C) and E)
G) A) and E)

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In the section "Investigating Life: Genetic Messages from Ancient Ecosystems",why did the scientists choose to look for the gene encoding for rubisco protein in their core samples?


A) Plant cells do not have mitochondriA.
B) Plant cells do not have a nucleus.
C) It is used in respiration by all plants.
D) It is used in photosynthesis by all plants.
E) It is present only in angiosperms.

F) C) and D)
G) None of the above

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Cycads are


A) trees that produce flowers.
B) bryophytes.
C) trees that produce large cones.
D) algae.
E) ferns.

F) None of the above
G) B) and D)

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In the section "Investigating Life: Genetic Messages from Ancient Ecosystems",an alternative hypotheses may explain the figure.Your lab partner states that perhaps mosses didn't evolve until recently,which is why they increase after herbs and shrubs.Which of the following would be the best response to your lab partner?


A) Mosses were actually the first land plants to appear.
B) Mosses are better adapted to dry climates.
C) All land plants appeared at roughly the same time.
D) If you look carefully at the figure,there were a few mosses present 300,000 years ago with other plants,so they had at least arisen prior to that.
E) Mammoths probably ate the mosses,so they did not appear until after the mammoths went extinct.

F) A) and E)
G) A) and C)

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The fruits of plants primarily function in


A) providing food for animals.
B) seed protection.
C) both protecting and dispersing seeds.
D) seed dispersal.
E) both feeding animals and protecting seeds.

F) None of the above
G) C) and D)

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The structure of the angiosperm that supplies nutrients to the germinating seedling is the


A) endosperm.
B) fruit.
C) seed coat.
D) spore coat.
E) pollen grain.

F) C) and D)
G) A) and E)

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Which group of plants have phloem and xylem but lack seeds,flowers,and fruit?


A) liverworts,hornworts,and mosses
B) ferns,club mosses,horsetails,and whisk ferns
C) ginkgo,cycads,conifers,and gnetophytes
D) monocots and eudicots
E) All plants have phloem and xylem but lack seeds,flowers,and fruit.

F) B) and E)
G) D) and E)

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B

Which group of plants have phloem and xylem,seeds,flowers,and fruit and in many cases require animals for reproduction?


A) liverworts,hornworts,and mosses
B) ferns,club mosses,horsetails,and whisk ferns
C) ginkgo,cycads,conifers,and gnetophytes
D) monocots and eudicots
E) All plants

F) B) and C)
G) C) and E)

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The term "gymnosperm" literally means


A) "clothed ovule."
B) "naked seed."
C) "naked ovule."
D) "clothed seeD."
E) "clothed sperm."

F) C) and E)
G) B) and C)

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The two types of vascular tissue in most plants are


A) lignin and xylem.
B) xylem and phloem.
C) lignin and phloem.
D) xylem and stomata.
E) stomata and lignin.

F) B) and C)
G) C) and E)

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What part of plant cells contains chlorophyll a and carries out photosynthesis?


A) mitochondrion
B) chloroplast
C) central vacuole
D) cell membrane
E) Golgi body

F) A) and B)
G) A) and E)

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