Animal Bio Exam.

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194 terms

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

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