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Read the following scenario to answer the following question(s) . People utilize plants to meet many everyday needs, including food, fiber, and building materials. However, not many of the over 300,000 known species of plants are used by people. One species with a lot of future promise is the jatropha tree. This species is native to Central America and is now found throughout the tropics. Many people believe the jatropha could help alleviate poverty in many areas of the world, as the seeds produce an oil that can be used for cooking, lighting, or generating electricity. This oil can also be mixed with diesel fuel or petrol to produce a biofuel. Mature trees produce between 5 and 15 kg of seeds per year and can live more than 30 years. However, critics argue that planting the jatropha tree will take land needed for food production, which will in turn harm the poor. -Which of the following statements concerning the jatropha tree is true?


A) Jatropha trees are found all over the world.
B) Everyone believes planting jatropha trees will be beneficial.
C) Humans use over half of the known species of plants for everyday uses.
D) Currently, the most valuable part of the jatropha tree is the seed.

E) All of the above
F) B) and C)

Correct Answer

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Why are bryophytes considered incompletely liberated from their ancestral aquatic habitat?


A) Their embryos do not develop within gametangia.
B) Their sperm are flagellated.
C) The gametophyte generation is dominant.
D) They lack a cuticle.

E) A) and C)
F) B) and C)

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Which of the following is a component of the female structure of a flowering plant?


A) petal
B) filament
C) anther
D) stigma

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

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At current rates of destruction,all of Earth's tropical forests will be gone within ______ years.


A) 10
B) 25
C) 50
D) 100

E) A) and C)
F) A) and B)

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Why does it make sense that many fruits are green when their seeds are immature?


A) Insects, which see the color green better than mammals do, can only carry seeds when they are small (immature) .
B) Green signifies less nutritive value.
C) They are green because fruits with immature seeds are still capable of photosynthesis.
D) They are harder to see and thus less likely to be eaten than other fruits.

E) A) and C)
F) B) and D)

Correct Answer

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What are hyphae?


A) symbiotic associations between plant roots and fungi
B) threadlike filaments that make up fungal bodies
C) fungal reproductive structures
D) fungal spores

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

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Nutritionally,all fungi are ______.


A) chemoheterotrophs
B) photoautotrophs
C) chemoautotrophs
D) parasites

E) C) and D)
F) B) and C)

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Nearly all food plants are as ______.


A) bryophytes
B) gymnosperms
C) ferns
D) angiosperms

E) A) and B)
F) B) and C)

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Which of the following correctly illustrates the sequence of the origin of modern groups of plants?


A) gymnosperms, ferns, bryophytes, angiosperms
B) bryophytes, ferns, gymnosperms, angiosperms
C) bryophytes, ferns, angiosperms, gymnosperms
D) ferns, gymnosperms, angiosperms, bryophytes

E) All of the above
F) None of the above

Correct Answer

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Of the following,which is the earliest step in the formation of fossil fuels?


A) subjecting organic matter to extreme pressure
B) fungi and bacteria converting the remains of organisms to inorganic nutrients
C) incomplete decomposition of organic matter
D) subjecting organic matter to extreme heat

E) B) and C)
F) None of the above

Correct Answer

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In ______ the gametophyte is more obvious than the sporophyte.


A) conifers
B) mosses
C) grasses
D) ferns

E) All of the above
F) C) and D)

Correct Answer

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______ were the first plants that did not require water for transferring sperm to eggs.


A) Bryophytes
B) Gymnosperms
C) Ferns
D) Angiosperms

E) C) and D)
F) B) and D)

Correct Answer

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Gametophytes reproduce ______.


A) by producing sperm and eggs
B) by fission
C) by alternation of generations
D) by budding

E) None of the above
F) B) and C)

Correct Answer

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What global climatic change gave gymnosperms an advantage over ferns?


A) the climate becoming hotter and wetter
B) increased fluctuations in global climate
C) the climate becoming cooler and drier
D) the climate becoming hotter and drier

E) B) and C)
F) A) and B)

Correct Answer

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In angiosperms,the ______ is a nutrient-storing tissue that nourishes a developing embryo.


A) fruit
B) seed
C) carpels
D) endosperm

E) B) and C)
F) A) and B)

Correct Answer

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In angiosperms,what structures house female gametophytes?


A) stigma
B) petals
C) ovules
D) sepals

E) All of the above
F) B) and C)

Correct Answer

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The function of a mushroom is to _____.


A) produce seeds
B) store nutrients
C) produce spores
D) absorb food

E) C) and D)
F) B) and D)

Correct Answer

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Like plants,fungi have ______; however,in plants they are composed of ______,whereas in fungi they are composed of ______.


A) cell walls... cellulose... chitin
B) cell walls... cellulose... peptidoglycan
C) cell membranes... phospholipids... peptidoglycan
D) cell walls... phospholipids... cellulose

E) All of the above
F) A) and D)

Correct Answer

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Which structure of a flower traps pollen?


A) style
B) stigma
C) ovary
D) filament

E) C) and D)
F) A) and B)

Correct Answer

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The pollen grain is to gymnosperms as the ______ is to angiosperms.


A) anther
B) flower
C) stamen
D) pollen grain

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

Correct Answer

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