Exam 2

which term describes an animal that lays eggs

oviparous

which of the following terms is associated with polychaetes

parapodia

which is critical to polychaete and oligochaete locomotion

satae

which is a characteristic of all annelids

segmentation

which arthropod has chelicerae, pedipalps, and silk glands

spider

which of the following is not an example of a cnidarian

sponges

how do leeches differ from other annelids

they dont have a setae or parapodia

which of the following is characteristic of nemerteans

they have no heart

In cnidarians, nemotocysts are housed within what type of specialized cell?

cnidocytes

which arthropods have manibles, gills, excretory glands, and statocysts

crustaceans

from an evolutionary perspective, true nerve cells are first seen in the phylum:

deuderia

the most closely related animal to vertebrates are the

euchodates

sharks detect motion in the water or waves by their

lateral lines

snakes are most likely closely related to

lizards

the veliger larval form is unique to

mollusks

sea stars eat

mostly bivalves

segmentation is important in annelids as an aid in

move

which of the following is correct statement regarding cnidarians?

they have a nerve net

after embryonic development members of phylum rotifera are incapable of

cell divsion

a nauplius larva is characteristic of

crustaceans

one characteristic of class bivalvia is that they

have two shells

all echinoderms are found

in the ocean

most mollusks are

marine

which are the animals with a crown of cilia that look like a spinning wheel

rodifers

the amphibians are believed to have arisen from ancestral

sacrotrygiran

which of the mollusks have closed circulatory system

squid

which structure is used to help regulate buoyancy of fish

swim bladder

gas exchange in terrestrial insects is accomplished through

the use of a trachea

which of the following is characteristic of flatworms

they are acoelomate

which of the following embryonic cells are unique to vertebrates

neural crest cells

which of the following are carnivores predators and scavengers

sea stars

placoid scales are found on

sharks

which of the following are the largest living vertebrates

sharks

The Portuguese man-of-war is a colony of hundreds to thousands of:

hydrozoans

What is the mode of nutrition for most Poriferans?

suspension feeders

salamanders are members of the order

cavidata

Within the chordate classes, the unique characteristic of the class Aves is:

feathers

refer to the accompanying figure. what is the structure labeled as 9

feeding polt

what specialized structure do crustaceans use to sense gravity

status sites

refer to the accompanying figure. asexual reproduction is occurring at which point

7

A fish with a cartilaginous skeleton and paired fins would be:

chonfrocyte

Sponges are believed to have arisen from the choanoflagellates because they possess:

collar cells

the first function of feathers was most likely

color

the earliest mammals resembled small

dogs

the phylum name arthropoda refers to

joint and appendages

which class of echinoderms has the greatest species diversity

ophiura

which of the following is not characteristic of cnidarians?

they only have one body shape, known as medusa

which are living decendants of the dinosaurs

birds

which chordate group has the most species

bony fishes

an elongate uniramid with many legs as well as posion claws is known as an

centipede

Metamorphosis occurs in which of the following vertebrate classes?

amphibian

the tetrapods include

amphibians, reptiles, birds, mammals

lancelets are

filter feeders

what is the mode of nutrition for clams and oysters

filter feeders

lungs first evolved in which group

fish

what is a difference between flatworms and nemerteans

flatworms can go through your skin and nemerteans have to be ingested

ctenophores capture food

glue cells

An animal found in the rocky intertidal zone has eight overlapping plates and is tightly adhering to the rock with a muscular foot. This animal is most likely a member of the class:

polly placafoa

which structure do numerous mollusks use to scrape algae off rocks

rangeela

echinoderms radial symmetry enables which of the following

rapid adaption to extremes of temperature

which of the following is an adaption that enables cephalopods to escape from their predators

rapidly changing colors

in which group did the amniotic egg first evolve

reptile

Birds are most closely related to:

reptiles

which of the following is not characteristic of deuterostomes

determinate cleavage

Which class of animals has the largest number of species?

insects

you have a sample of cat emesis and find worms in the sample. the clyindrical worms are lond and slender, pointed at each end, with no other distinguishing characteristics. you can conclude they are members of which phylum

nematodes

marsupials include the

opossum

echinoderms are unique because

pinto symmetry

hagfishes are differentiated from lampreys and all other fishes in that

vertebrae

which characteristic best describes vertebrates

vertebral column

which of the following animals helps to maintain fertile soil

earthworm

which of the following s a marine species that is segmented and has many setae, a well developed head, seperate sexes, and trochophore larva

sandworms and tubeworms

the anterior end of a tapeworm is known as the

scolex

which of the following groups use very long pedipalps as pinchers for capturing prey

scopions

Within the phylum Cnidaria, corals are most closely related to:

sea anoma

which of the following are sluggish creatures that live on the sea bottom and commonly eject organs when conditions are poor

sea cucumbers

the body wall of cnidarians and ctenophores consist of

the inner and outer walls are seperated by a jelly mesoglea

which of the following is not a correct statement regarding ctenophores?

they are distinct from the species known as comb jelly

Sea stars are primarily:

carnivores

Where does digestion in a sponge takes place?

Each individual cell

Which of the following is NOT a correct statement regarding collar cells?

The collar cell is an extension of the cell wall and consists of microvilli

the nervous system of many species of flatworms

a ladder

which of the following is not an adaptation that contributes to the biological success of insects

high intraspecific competition

the monotremes are an unusual group of mammals because they

lay eggs

which of the following species has been used for centuries to drae blood from areas swollent by poisonous stings and bites

leach

extinct jawless fish include the

ostracoderms

which term can be applied to both monotremes and sharks

oviparous

the most unique feature of the echinoderms is their

water vascular system