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194 terms

Animal Bio Exam.

STUDY
PLAY
Snails are often an intermediate host of Schistosoma Japonicum
True
The ventral blood vessel can be seen through he cuticle and epidermis of an earthworm
False
Planula are larval forms of molluscs
False
The radula is only found in snails and slugs
false
the cercaria are a stage in the life cycle of a liver fluke
true
a typical fluke has a scolex and a large group of proglottids that make up the stobila
false
the larger the proglottids are, the more mature they are
true
the gastrozooids are the reproductive structures of an obelia colony
false
zooanthellae are dinoflagellates that live in the epidermis of sea anemones
false
most cnidarians are "k" selected
true
the organ in an annelid that acts to break down amino acids and convert excess carbohydrates into glycogen and fat is the
chloragogen tissue
the digestive system of an earthworm includes two sac-like structures the storage facility known as the ___ and the grinding organ known as the _____
Crop, Gizzard
the bristles on the ventral surfaces of earthworms for gripping are known as
setae
when water is confined to a cavity of the body and against which elements of the body wall act it is known as an
hydrostatic skeleton
nematocysts lining hte tentacles bring in foods to the ____ where digestion occurs
gastrovascular cavity
the asexual stage of a typical cnidarian is the ___ stage
polyp
The most developed eyes of molluscs are found in organisms in the class
cephaopoda
the food handling structures of clams to guide food into the mouth are
palps
the life cycle of the ___ include raw fish
chinese liver flukes
the turbellarians have which of the following muscles
longitutinal, circular, oblique
___is the outer covering of a platyhelminth
Tegument
___ refers to the number of germ layers in platyhelminthes
triploblastic
___ refers to the fecal material released on the head of certain molluscs
Fouling
___ circulatory systems refer to those that circulate blood or hemolymph into hemocoels or cavities rather than specific organs
open
cephalopods are
dioecious
larval forms of cnidarians
planula
stinging cell is a characteristic missing in the phylum
cteophora
___is accomplished in the segmented worms with internal septa
Metamerism
the ___ layer is responsible for pearl formation
nacreous
waste removal in annelids is accomplished through structures called
metanephridia
Polychaeta
Class of the marine worms
Annelida
phylum of the segmented worms
oligochaeta
class of the earthworms
ctenophora
phylum of the sea walnuts
hirudina
class of the leeches
hydrozoans
solitary or colonial asexual polyps and sexual medusae
scyphozoa
solitary, polyp stage sometimes reduced or absent, bell shaped medusae
staurozoa
solitary, polyps only, medusa absent
cubozoa
solitary, polyp stage reduced bell shaped medusae square in cross section
anthozoa
all polyps, no medusae
Turbellaria
free living flattworms
trematoda
class of the digenic flukes
monogenea
class of monogenetic flukes
Cestoda
Class of the tapeworms
Platyhelminthes
class of flat worms
polyplacophora
class of chitons
scaphopoda
Class of the tusk shells or tooth shells
gastropoda
class of snails, slugs, sea hares
pelecyopda
class of bivalved molluscs including clams, mussels, scallops, oysters
cephalopoda
class of the squids, octopuses, nautiluses, and cuttlefish
Phylum Porifera includes: Trichonymphs, Dinoflagellates, and Paramecia
False
Achaeocytes are amebocytes that move through the mesophyl of sponges
True
The order of complexity in sponge structure from most simple to most advanced is this" syconoid, leuconoid, and then asconioid
false
the type of pseudopods exemplified by actinosphareium are known as axopodium
true
the series of longitudinal microtubules just below the plasma membrance that help stiffen the membrance found in most ciliates is a pellicle
true
the voyage of the HMS labrador is known worldwide as charles darwins voyage that inspired his theory of evolution
false
the physical space where an animal lives, and which contains its environment is its habitat
true
pseudocoelomate, acelomate, and coelomate refer to body plans, which are one of the characteristics important in naming epithelial tissues
false
lacunae can be found in both bone and carilage
true
a cladogram is a branching diagram showing the pattern of sharing of evolutionarily dervied characteristics among species or higher taxa
true
the system of binomial nomenclature is attributed to
carolus linnaeus
the speciation that occurs when a population is isolated geographically is known as
allopatric speciation
_____ is a system based solely on morphological (structural characteristics)
Aristotelian Essentialism
Arcella Vulgaris, amoeboa proteus, actinospharieum, and difflugia all belong in the taxonomic kingdom
protista
which of hte following is not a valid family name
procyon
of the four types of symmetry we introduced, almost all vertebrates posses
bilateral symmetry
striations, nuclei, intercalated discs, invluntary and to some degree vountary describes
cardiac muscle
the firection of nervous system impulses in a typical neuron is
dendrites-cell body-axon
the connective tissue with lacunae, osteocytes and a matrix include all of these except:
compact bone
in a controlled experiment, the part of the experiment that remains the same in order to compare is the
control group
darwins theory of evolution encompasses 5 specific theories. Which is not one
artificial selection
populations as they grow are limited by environmental resistance, this resistance leads to a ceiling called the
carrying capacity
in an age structure pyramid with many more pre reproductives than reproductives the population would be
growing rapidly
potential reasons for different population structure in more developed countries com[ared to less developed countries include all except
temperature fluctuations
survivorship curves are a way to look at
reproductive allocation
the type of natural selection that favors individuals that are average for a particular trait is called
stabilizing selection
Organisms that can make their own food through photosynthesis are called
autotrophs
a relationship between two organisms in which one live on or in another organism until the host is consumed is called a
parasitoid relationship
which of the following is not a structure found in sponges
tests
difflugia, actinsphaerium, arcella, amoeba proteus, and centropyxis are all
amebas
all of the potential alleles in the population
gene pool
evolutionary bursts of activity seen in the fossil record especially in the cambrian explosion
punctuated equilibrium
small scale genetic changes in a population leading to new very closely related species
microevolution
several species all adapted from a common ancestor in repsone to subtle environmental cues
adaptive radiation
the loss of alleles from a population due often to non random mating and potential inbreeding
genetic drift
a colletion of interacting organisms that represent the feeding relationships that exist in an environment
food web
a parasite that feeds from whithin the host
endoparasites
a species that when removed from an environment has a profound effect on other populations
keystone species
the ability of an organism to adapt in such a way that other organisms believe they are another species
mimicry
a parasite that feeds from the outside of its host
ectoparasite
___is the name of the larger excurrent opening in sponges
Osculum
___ are sponges that contain spicules made of calcium
calcispongiae
___ is a form of sexual reprocuction
conjugation
_____are symbiotic protozoans that live in the gut of termites that allow for the digestion of cellulose
Trichnymphs
______ have the capactiy to evolve
populations
_____ arae able to stretch as in the urinary bladder
transitional epithelium
_______ is exemplified by the colonial organism Vovox globater
Spherical Symmetry
_____ factors are those that influence a population regardless of the number of organism
Density Independent
______is a relationship between two or more organisms in which both have the potential to be harmed if resources are limited
Competition
______ is a theory in which small incremental changes in a population occur over long periods of time
Gradualism
Mites and tick differ from all other arachnids in having their cephalothorax and abdomen completely fused
true
scorpions resire by means of book gills
false
the black widow and the brown recluse are dangerous spiders
true
most species of insects have wings
true
in complete metamorphosis, the sequence of instars in nymphal instars, pupa, then adult
false
the water vascular system of sea stars opens to the outside through the madreporite
true
the brittle stars are the most active ehinoderms
true
a notochord is present at somet iem in the life cycle of all chordates
true
tunicates are sessile organisms with no larval stages in their life cycle
false
vertebrates differ from other chordates because they have a brain case
true
the ampullary organs of Lorenzini are receptors for detecting weak electrical fields
true
shars are heavier than water but achieve neutral buoyancy by means of a swim bladder
false
arthropods arae successful because they have
all of these
the trilobites are
extinct
memebers of the class arachnida have
a cephalothorax and abdomen
the crustaceans that are sessile and enclosed in a shell of calcareous plates are called
barnacles
insects differ from other arthropods because insects have
wings
a uniqure characteristic of echinoderms is
all of these
the echinods
are enclosed in a test
when a sea star feeds on a clam, it inserts its ___ between the two valves
stomach
all chordates have
a single, dorsal, tubular nerve chord
the urochordates are
all of these
the postanal tail is seen in humans only as a vestige; the
coccyx
the lateral line of a shark is used for
detecting and locating objects and moving animals in the water
sharks have
placoid scales
swim bladders would be expected to be present in
most surface-dwelling fish
a tough resistant nitrogenous polysaccharide in the cuticle of arthropods is
chitin
class of the sea urchins and sea biscuits
echinoidea
class of the sea lilies and feather stars
crinoidea
class of the sea cucumbers
holothuroidea
class of the brittle stars and basket stars
ophiuroideada
class of the sea stars
asteroidea
visual communication involving the production of light
bioluminescence
life cycle that includes: egg, larvae, pupa and adult
Holometabollis
molting of the exoskelton for growth
ecdysis
chemical signals that affect sexual behavior
phermones
life cycle that includes: egg, nymph, and adult stages
Hemimetabolis
Trilobita
trilobites
chelicerata
spiders, ticks, horseshoe crabs
crustacea
barnacles, shrimp, lobster
diplopoda
millipedes
chilopoda
centipedes
Some salamanders have neither lungs nor gills
false
the decline in amphibian populations particularly forgs may be attributeted to habitat distruction
true
a kinetic skull is a characteristic of all reptiles
false
reptiles have internal fertilization
true
most snakes are oviporous
true
mature feathers are dead structures and must be replaced at regular intervals
true
the muscle which raises the wind of a bird is located
on the chest
the main premise underlying darwinian evolution is that the living world is neigher constant nor perpetrually cycling, but always changing
true
genetic drift occurs to some degree in all population of finite size
true
the theory of evolution by natural selection was propoed by
darwin and wallace
darwins finches represent a good example of
adaptive radiaiton
which of the following is not one of the observations that led darwin to propose the theory of natural selection
the hereditary process features inheritance of discrete and non blending particular factors
maximum number of individuals of a species that an area can support is the
carrying capacity
simple columnar epithelial cells with microvilli are found
in the intestine for absorption
long thin pseudopodia supported by axial rods of microtubules are
axopodia
the protozoan trypanosoma causes
african sleeping sickness
characeristics of protozoans include
species with endoskeletons, exoskeletons, and species that are naked
red tides may be best described by
growth of certain dinoflagellates producing detectable levels of toxin
the cells of a sponge that are responsible for water flow and capture of some particles are the
choanocytes
the structural protein found in sponges is
spongin
structures in different organisms that are similar because they desend with some modiication from a corresponding feature of their common ancestor are sai to be
homologous
competition between members of the same species for a particular resource is called
intraspecific competition
similar cells grouped together to perform a common function is called
tissue
a holozoic protozoan ingest food particles by the process of
phagocytosis
sexual reproduction invovlves production of gametes that fuse to form a
zygote
osmoregulation in protozoa is carried out chiefly by structures called
contractile vacuoles
multiple fission or schizogony is a type of asexual reproduction characteristic of all protozoa belonging to the taxon called
apicomplexans
the minute, needle-like structures that act as a skeletal support system in sponges are called
spicules
the water outlets in sponges are known as
oscula
order gymnophiona include legless caecilian
true
respiration in organisms of class amphibia is entirely through gills
false
spermatophores are important reproductive structures in salamander reproduction
true
the Jacobsons organ is used to detect movement
false
irregular fluctuations in populations caused by crowding in populations caused by crowding and dispersal are due to
density dependent causes
bovines have
true horns
yound that hatch and are immediately active and covered with down are called
precocial
organ of hearing in a bird is the
cochlea
squamata
lizards
male nematodes differ from females internally because they have
a single unbranched reproductive organ.
the function of the spiracle in skates and rays is for
water intake
juvenile trichina worms live in the
skeletal muscle
elephantiasis is caused by filarial worms that live in the
lymphatic system
Nematodes are
dioecious
adult eels from both europe and noth american spawn at great depth in the sea of
sargasso
nematodes only have
longitudinal muscle
minute pincer like ____ are found on the surfaces of many sea stars
pedicellaria
lancelets belong to the subphylum
cepahlochordata
ampihipoda
taxon of scuds
euphausiacea
taxon of krill
decopoda
taxon of crabs, lobster, and crayfish
chilopoda have
posion claws
larval eels were first called
leptocephali