Term
The _____ body form of a cnidarian is typically asexual and sessile
A. sycon
B. polyp
C. ascom
D. leucon
E. medusa |
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Definition
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Term
The oldest proglottids at the end of a tapeworm are filled with eggs, and are said to be
A. male
B. female
C. immature
D. green
E. gravid |
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Definition
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Term
triploblastic organisms that possess a body cavity that is not entirely lined with mesoderm are called
A. pseudocoelomates
B. acoelomates
C. hemocoelomates
D. eucoelomates
E. coelomates |
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Definition
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Term
the classification system used today began with the work of
A. Charles Darwin
B. Alfred Russel Wallace
C. Gregor Mendel
D. Karl von Linne
E. Jean Baptiste Lamarck |
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Definition
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Term
Which is NOT a trait of sponges
A. they are sessile filter feeders
B. their flagellated collar cells move water and trap food particles
C. they are diploblastic
D. types of amoboid cells digest food and make skeletal fibers and gametes |
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Definition
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Term
the chills and fever of malaria are correlated with
A. the maturation of parasites
B. the rupture of red blood cells
C. the release of toxic metabolities
D. all of the above |
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Definition
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Term
the majority of sponge species are in the class ___________, these sponges are brightly colored with siliceous spicules and/or spongin
A. Calcarea
B. hexactinellida
C. demospongiae
D. porifera
E. anthozoa |
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Definition
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Term
"red tides" are caused by
A. radiolarians
B. foraminiferans
C. sporooans
D. volvicines
E. dinoflagellets |
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Definition
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Term
some segmented animals have groups of segments specialized for particular functions. the process of forming these distinct body regions is called
A. metamerism
B. eutely
C. tagmatization
D. cephalization
E. differentiation |
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Definition
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Term
The anticoagulant secreted by leech salivary glands is
A. hirudin
B. saliva
C. salivary amylase
D. hemerythrin
E. prothrobin |
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Definition
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Term
In earthworms, the girdle-like structure that secretes mucus during copulation and forms a cocoon is called the __________
A. cilitellum
B. parapodium
C. seminal receptacle
D. epitoke
E. porstomium |
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Definition
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Term
In many cases, predator and prey organisms evolve together and exert a strong selective influence on each other. this is known as
A. transspecific evolution
B. intraspecific evolution
C. density independent evolution
D. coevolution
E. interevolution |
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Definition
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Term
How is Toxoplasmosis contracted
A. zoonotic-ingestion of oocysts (infective stages) from cat species
B. foodborn-ingestion of raw or insufficiently cooked meet
C. congenital -in utero transmission (crossing the placenta during pregnancy)
D. all of the above |
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Definition
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Term
How could you become infected with adult tape worm
A. eating insufficiently cooked pork or beef
B. being bitten by a mosquito
C. being bitten by a tick
D. ingesting eggs in contaminated water
E. none of the above |
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Definition
| A. eating insufficiently cooked pork or beef |
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Term
the most speciose class of annelids is __________. its members are primarily marine
A. Chaetognatha
B. Oligochaeta
C. Hirudinea
D. Gnathostomulida
E. Polychaeta |
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Definition
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Term
The Portuguese man-of-war is a colonial
A. scyphozoan
B. anthrozoan
C. mesozoan
D. hydrozoan
E. cubozoan |
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Definition
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Term
sexual production among ciliates like paramecium involves the reciprocal exchange of micronuclei in a process called
A. budding
B. fragmentation
C. schizogony
D. conjugation
E. multiple fission |
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Definition
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Term
one proposed mechanism for the evolution of multicellularity involves an ancestral multinucleate cell in which plasma membranes formed between nuclei, resulting in a multicellular organism. this is the ________ hypothesis
A. colonial
B. syncytial
C. polyphyletic
D. metazoan
E. synthetic |
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Definition
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Term
the osmoregulatory organs of tubellarians are called
A. contractual vacuoles
B. kidneys
C. metanephridia
D. mesonephridia
E. protonephridia |
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Definition
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Term
In the class Clitellata, the larval form is
A. a trochophore
B. absent
C. a veliger
D. dormant
E. free living |
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Definition
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Term
Contractile vacuoles in freshwater protozoans function to
A. remove excess water
B. remove the nitrogenous by-product of metabolism
C. capture prey
D. increase the efficiency of movement
E. destroy infectious bacteria |
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Definition
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Term
which of the following is not a characteristic of animals in the phylum Cnidaria
A. diploblastic, tissue level organization
B. gastrovascular cavity
C. nervous system in form of a nerve net
D. bilateral symmetry in the adult form
E. specialized cells called cnidocytes |
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Definition
| D. bilateral symmetry in the adult form |
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Term
environmental factors such as severe weather of deforestation which limits the growth of populations is said to be
A. regulative factor
B. density independent factor
C. density dependent factor
D. r-selective factors
E. inherent factors |
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Definition
| B. density independent factor |
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Term
a feature that does NOT characterize annelids is
A. ventral nerve cord
B. bilateral symmetry
C. a complete digestive trac
D. an acoelomate condition |
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Definition
| D. an acoelomate condition |
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Term
tapeworms lack
A. reproductive organs
B. a mouth and digestive trac
C. excretory structures
D. holdfast structures
E. a tegument |
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Definition
| B. a mouth and digestive trac |
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Term
chemoreceptors that aid in the location of food are especially dense in the ________ of turbellarians
A. eye spots
B. cerebral ganglia
C. statocysts
D. ocelli
E. auricles |
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Definition
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Term
_________ are sensory pits on the heads of polychaetes with chemoreceptors for food detection
A. olfactors
B. auricles
C. statocysts
D. phasmids
E. nuchal organs |
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Definition
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Term
the population size that a particular environment can support is called
A. biotic potential
B. environmental capability
C. J-selective
D. C-selective
E. carrying capacity |
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Definition
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Term
a period of decreased metabolism and lowered body temperature that may occur daily in some bats, humming birds, and small mammals is called
A. aestivation
B. hibernation
C. winter sleep
D. migration
E. torpor |
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Definition
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Term
The free swimming larva of cnidarians is the
A. planula
B. pilidium
C. trochophore
D. bipinnaria
E. veliger |
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Definition
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Term
animals that are brightly colored to warn away potential predators are said to have
A. camouflage coloration
B. countershaded coloration
C. aposematic coloration
D. aestival coloration
E. ecotonal coloration |
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Definition
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Term
an animals ________ includes all of the biotic and abiotic characteristics of the area in which the animal lives
A. habitat
B. tolerance range
C. territory
D. optimum range
E. geography |
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Definition
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Term
The belly of surface of most bilaterally symmetrical animals is
A. anterior
B. posterior
C. ventral
D. dorsal
E. lateral |
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Definition
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Term
a symbiotic relationship in which one member derives a benefit from the association and the seconded member in unaffected is called
A. mutualism
B. parasitism
C. commensalism
D. predation
E. herbivory |
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Definition
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Term
what kind of characteristics are used in distinguishing protostomes from deuterostomes
A. feeding characteristics
B. adult characters
C. eukaryotic characters
D. developmental characters
E. mitotic characteristics |
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Definition
| D. developmental characters |
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Term
Most of the time, protozoans reproduce by __________
A. conjugation
B. asexual cell division
C. fusion of gametes
D. parthenogenesis
E. autogamy |
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Definition
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Term
populations of ________ often have a type II survival curve
A. rodents and birds
B. humans
C. fishes and insects
D. elephants
E. robins and fishes |
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Definition
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Term
some polychaetes exhibit epitoky; the ________ is the non-reproductive individual
A. anaoke
B. heterotoke
C. protogyn
D. atoke
E. hypertoke |
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Definition
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Term
the ______ is the simplest but least common body form of a sponge
A. leucon
B. sycon
C. demosponge
D. ascon
E. sclerosponge |
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Definition
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Term
| trypanosoma parasites are transmitted to humans by
A. Aedes mosquitoes
B. all species of flies
C. tsete flies
D. all species of mosquitoes
E. all species of ticks and mites |
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Definition
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Term
how are schistosomes (blood flukes) unique compared to other trematodes
A. they are dioecious
B. they are of little medical importance
C. snails serve as intermediate hosts
D. most of the pathology is caused by adult flukes lodging in vessels of the brain |
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Definition
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Term
Which statement concerning the Chinese live fluke is true
A. humans acquire the infection by eating raw or undercooked fish
B. snails serve as the second intermediate host
C. fish serve as the definitive host
D. fluke eggs are released with the urine of the human host
E. all statements are ture |
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Definition
| A. humans acquire the infection by eating raw or undercooked fish |
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Term
a process known as ______ begins the sexual phase of the plasmodium species life cycle
A. exogony
B. schizogony
C. endogony
D. gametogony
E. sporogony |
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Definition
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Term
A taxon composed of members that do not share a single recent common ancestor is said to be
A. phylogenetic
B. polyphyletic
C. monophyletic
D. unigenic
E. synaptomorphic |
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Definition
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