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Protists are considered to represent an artificial kingdom rather than an evolutionary lineage because


A) no single clade can combine all the species currently grouped within the kingdom.
B) both prokaryotic and eukaryotic species have been assigned to the kingdom.
C) they evolved recently and the members routinely hybridize with one another.
D) all of the species included within the grouping are believed to have descended from a single common ancestor.

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Mature pteridophytes can be transplanted to many different habitats,but natural reproduction in this group is limited to moist environments such as forests because these organisms


A) lack true vascular tissue.
B) are unable to produce seeds.
C) have flagellated sperm that must swim to the female reproductive structures.
D) release their zygotes as zoospores rather than experiencing the embryonic development typical of the more advanced plants.

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Long known for its bitter taste,low concentrations of caffeine in the nectar of some plants appears to act as a mild stimulant to the insects that consume the nectar and improves the probability of ________ for those plants that produce it.

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In addition to a process similar to binary fission in prokaryotes (as seen in Amoeba) and fragmentation (as seen in large multicellular algae) ,some eukaryotes can also reproduce asexually by


A) hermaphroditism.
B) releasing gametes that then develop into male or female individuals.
C) the formation of zoospores.
D) creating dormant reproductive structures such as seeds that grow only when environmental conditions are favorable.

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The hyphal mass,or body,of a fungus is constructed from interwoven filaments called mycelia.

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One of the fundamental differences between phytoplankton and zooplankton is that zooplankton are ________.

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What capability did the development of a vascular system provide?


A) greater efficiency at capturing energy from sunlight
B) greater efficiency for nutrient transport and structural support
C) permitted plant life to establish on land
D) allowed the developing embryo to remain protected until better growth conditions became available

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Protists may superficially resemble organisms in the other kingdoms;one exception is the kingdom ________,whose members do not resemble protists in any meaningful way.


A) Bacteria
B) Fungi
C) Plantae
D) Animalia

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An important adaptation for terrestrial life that helps keep terrestrial plants from desiccating when exposed to sun and wind is a waxy covering known as the ________

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Which resource is properly matched with its source?


A) pharmaceuticals-Angiosperms
B) wood and lumber-Bryophytes
C) food-Gymnosperms
D) pharmaceuticals -Pteridophytes

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Fungi contribute to several important ecosystem processes;among the most important is ________ organic matter.

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Many biologists have suggested revising the kingdom Protista.The primary problem with the Protista,as shown in the following figure,is that Many biologists have suggested revising the kingdom Protista.The primary problem with the Protista,as shown in the following figure,is that   A)  protists are single-celled organisms and should be grouped with the bacteria or archaeans. B)  the cells of some,but not all,protists contain nuclei and organelles. C)  the current classification model does not suggest an association between the plants and alga despite the presence of chloroplasts in both groups. D)  the amoeboid protists are no more closely related to the rest of the group than are animals and fungi.


A) protists are single-celled organisms and should be grouped with the bacteria or archaeans.
B) the cells of some,but not all,protists contain nuclei and organelles.
C) the current classification model does not suggest an association between the plants and alga despite the presence of chloroplasts in both groups.
D) the amoeboid protists are no more closely related to the rest of the group than are animals and fungi.

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The flower is the basic reproductive structure of a plant;thus,all plants produce flowers.

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Life on Earth began in the water;the first organisms believed to colonize the land were


A) bacteria.
B) plants.
C) fungi.
D) animals.

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Phytophthora ramorum,the fungus causing sudden oak death,has been spread to uninfected forests on the boots of hikers;what reproductive method is most likely responsible?


A) Fragmentation-the fungus is broken when stepped on,and fragments adhere to the boot.
B) Asexual reproduction-spores settle on boots and shoes when a mature individual is disturbed.
C) Colonization-the fungus colonizes the boot,matures,and eventually disperses new cells.
D) Budding-after establishing on the boot,the fungus divides asymmetrically to produce daughter cells.

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During a red tide


A) air pollution turns the sunrise and sunset bright red,which,in turn,makes beaches appear red.
B) fish die from water pollution and bleed as they wash up on the shoreline.
C) single-celled protists become so numerous that they color the water red,brown,yellow,or other colors.
D) fish eat large quantities of red-colored food items and temporarily become red themselves.

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In nature,fungi function primarily as ________,getting their nutrition from dead and dying organisms.

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What best explains the differences in shoot weight shown in the following graph? What best explains the differences in shoot weight shown in the following graph?   A)  Commercial fertilizers often contain harmful contaminants that can suppress growth. B)  Sterilized growth environments remove competitive bacteria and fungi,allowing plants to experience their best possible growth. C)  Commercial fertilizers can be tailored to meet the needs of specific plants,producing the best possible growth for that species. D)  Mycorrhizal fungi not only increase the availability of soil nutrients but often transport them into the plant root.


A) Commercial fertilizers often contain harmful contaminants that can suppress growth.
B) Sterilized growth environments remove competitive bacteria and fungi,allowing plants to experience their best possible growth.
C) Commercial fertilizers can be tailored to meet the needs of specific plants,producing the best possible growth for that species.
D) Mycorrhizal fungi not only increase the availability of soil nutrients but often transport them into the plant root.

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The kingdom Plantae consists of four major groups;among the first to colonize the land are believed to be the ________.


A) angiosperms
B) ferns
C) gymnosperm
D) mosses

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Although costly to produce,the large number of fruit-producing species attests to the success of fruit production as an evolutionary adaptation;in what way is fruit production helpful?


A) Fruits attract pollinators such as insects and birds to move pollen between different plants.
B) Fruit toxins can discourage potential consumers from eating the plant.
C) Plants can store energy in fruits during summer and then later recover the energy during winter,when the fruit decomposes.
D) Consumers eating fruits also eat seeds that,when not digested,can be deposited far from the parent plant.

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