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Chapter 38
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30
Biology
10th Grade
05/25/2011

Additional Biology Flashcards

 


 

Cards

Term

basket stars and brittle stars are members of the class

 

a. holothuroidea

b. echinoidea

c. ophiuridea

d. crinoidea

Definition
c. ophiuridea
Term

sea urchin: a fused endoskeleton::

 

a. soft body: sea cucumber

b. sand dollars: an exoskeleton

c. basket stars: thick, rigid arms

d. sea stars: distinct arms

Definition
d. sea stars: distinct arms
Term

the symmetry exhibited by adult echinoderms is

 

a. bilateral

b. mirror image

c. radial

d. spherical

Definition
c. radial
Term

vertebrates, tunicates and lancelets

 

a. are all terrestrial heterotrophs

b. are all members of the phylum chordata

c. are all marine fish

d. all have a backbone in the adult stage

Definition
b. are all members of the phylum chordata
Term

lancelets

 

a. are animals that live near the ocean surface

b. filter food from water that enters the mouth

c. are the first animals that evolved backbonds

d. have chordate features only in the larva stage

Definition
b. filter food from water that enters the mouth
Term

which of the following are echinoderms

 

a. sand dollars

b. sea stars

c. sea urchins

d. all of the above

Definition
d. all of the above
Term

which of the following are sessile as adults

 

a. sea urchins

b. feather stars

c. sea lilies

d. sand dollars

Definition
c. sea lilies
Term

echinoderms have all of the following except

 

a. cephalization

b. ossicles

c. symmetry

d. tube feet

Definition
a. cephalization
Term

which of the following develops into the brain and spinal cord in humans

 

a. notochord

b. postanal tail

c. dorsal nerve cord

d. pharyngeal pouches

Definition
c. dorsal nerve cord
Term

tunicates: in deep water::

 

a. lancelets: near the waters surface

b. lancelets: in mud or sand

c. tentacles: in sea urchin mouths

d. ossicles: in lancelets

Definition
b. lancelets: in mud or sand
Term

the name echinoderm means

 

a. second mouth

b. spiny skin

c. outer skin

d. little bone

Definition
b. spiny skin
Term

some sea stars can reproduce asexually by

 

a. growing an extra arm that separates from the parent and forms a new individual

b. dividing in half through the central region and regenerating the missing halves

c. growing longer and longer arms that eventually break off and form new individuals

d. all of the above

Definition
b. dividing in half through the central region and regenerating the missing halves
Term

which embryonic chordate characteristics do lancelets retain as adults

 

a. notochord, dorsal nerve chord, postanal tail, pharyngeal pouches

b. notochord, dorsal nerve cord

c. notocord, postanal tail

d. notochord, dorsal nerve cord, postanal tail

Definition
a. notochord, dorsal nerve chord, postanal tail, pharyngeal pouches
Term

sea stars are members of the class

 

a. ehinoidea

b. asteroidea

c. ophiuroidea

d. crinoidea

 

Definition
b. asteroidea
Term

sea urchins and sand dollars are members of the class

 

a. ophiuroidea

b. crinoidea

c. echinoidea

d. holothuroidea

Definition
c. echinoidea
Term

echinoderms

 

a. have an exoskeleton as adults

b. are radially symmetrical as larvae and as adults

c. are radially symmetrical as larvae and bilaterally symmetrical as adults

d. are bilaterally symmetrical as larvae and radially symmetrical as adults

Definition
d. are bilaterally symmetrical as larvae and radially symmetrical as adults
Term

embryological evidence suggests that the echinoderms are closely related to the

 

a. annelids

b. chordates

c. arthropods

d. arachnids

Definition
Term

some scientists have hypothesized that the first vertebrates, which were fish, may have evolved from an ancestral tunicate that became sexually mature in larval form. they suggest that these reproducing larvae were successful and natural selection reinforced the absence of metamorphosis to the adult. which of the following statements doesnt support the hypotheiss that vertebrates evolved from sexually mature larvae?


a. many invertebrates, all tunicate larvae and adults and the earliest vertebrates are or were filter feeders

b. adult tunicates are sessile and larval tunicates are free swimming

c. the vertebral column of adult vertebrates replaces the notochord present in embryonic vertebrates

d. some living urochordates are free swimming only as larvae

Definition
Term

sea cucumbers are members of the class

 

a. crinoidea

b. ophiuroidea

c. holothuroidea

d. echinoidea

Definition
c. holothuroidea
Term

sea lilies and feather stars are members of the class

 

a. echinoidea

b. holothuroidea

c. ophiuroidea

d. crinoidea

Definition
d. crinoidea
Term

the subphylum vertebrata includes all of the following except

 

a. birds

b. lancelets

c. fish

d. reptiles

Definition
b. lancelets
Term
adult tunicates have a tough sac called a ____ that surrounds their bodies
Definition
tunic
Term
radially symmetrical echinoderms may have evolved from ____ symmetrical ancestors
Definition
bilaterally
Term
sand dollars belong to the phylum ____
Definition
echinoderm
Term
the system of water filled canals connected to the tube feet in echinoderms is called the ______ system
Definition
water vascular
Term
sea cucumbers belong to the phylum _______
Definition
echinodermata
Term
water enters the water vascular system of echinoderms in the ______, a sievelike plate on the aboral surface
Definition
madreporite
Term
a sand dollar is a member of the phylum ____
Definition
echinoderma
Term
echinoderms and chordates are _____ which means that their early development the blastopore becomes the anus
Definition
deuterostomes
Term
sexual reproduction in most echinoderms occurs as follows: a sperm and an egg fuse to form a zygote, the zygote develops into a swimming larva called ______ which is  ______ symmetrical, and then the larva develops into pentaradially symmetrical adult
Definition
bipinnarea; bilaterally
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