Invertebrates

Question 1

T/F most knows species are invertabrate

Answer 1

True

Question 2

Which are always protosomes

Answer 2

Acoelomates and psuedocoelomates

Question 3

What can be protosome or dueterosome

Answer 3

Coelomates

Question 4

What phylum are sponges in

Answer 4

porifera

Question 5

what are features of sponges differentiated than that for other animals

Answer 5

They lack true tissue

They lack organs

Question 6

Body plan of Cnidarians

Answer 6

Diploblastic

Radial symmetry

Question 7

What are the 4 classes of cnidarians

Answer 7

Hydrozoa
scyphozoa
cubozoa
anthozoa

Question 8

How is body plan of cnidarian basic.

Answer 8

They are a sac with a gastrovascular cavity

Question 9

Two body type variations of cnidarians

Answer 9

Polyp

medusa

Question 10

How is polyp distinguished from medusa

Answer 10

Mouth is facing up

Question 11

What is the prevalent form of Syphozoa

Answer 11

Medusa

Question 12

Example of Hyrdozoa

Answer 12

Colonial polyps

Question 13

Example of scyphozoa

Answer 13

Jelly fish

Question 14

Example of Cubozoa

Answer 14

Box jellies

Sea wasp

Question 15

Example of anthozoa

Answer 15

sea anemone

Question 16

Significant trait of cubozoa

Answer 16

Complex eyes

Question 17

What form stage are anemones and corals found in

Answer 17

polyp

Question 18

What type of tissue are bilaterians

Answer 18

Triploblastic

Question 19

Organisms in Lophotrochozoa

Answer 19

Flat worms, rotifers, ectoprocts, barchiopods, molluscs and annelids.

Question 20

How is Lophotrochozoa grouped together

Answer 20

Molecular data

Question 21

What phylum are flatworms in

Answer 21

Platyhelminthes

Question 22

What Type of body tissue do flatworms have

Answer 22

Triploblastic

Question 23

T/F Flatworms are coelomates

Answer 23

False

they are Acoelomates

Question 24

T/F Flatworms have a gastrovascular cavity

Answer 24

True

Question 25

Phylum for Rotifers

Answer 25

Rotifera

Question 26

Habitat for rotifers

Answer 26

Fresh and ocean water | Damp soil

Question 27

T/F Rotifers are smaller than protists AND are multicellular

Answer 27

True

Question 28

T/F rotifers do not have specialized organ systems

Answer 28

False

Question 29

T/F rotivers have teeth

Answer 29

False, | Mouth contains cillia

Question 30

Define Alimentary canal

Answer 30

digestive tube with mouth at one end and anus at the other floating in a pseudocoelom

Question 31

How do rotifers Reproduce

Answer 31

There are no males, | Females produce offspring from unfertilized eggs

Question 32

New name for rotifers

Answer 32

Syndermata

Question 33

Examples of molluscs

Answer 33

Chitons, snails, oysters, squids

Question 34

chitons

Answer 34

8 segmented body

Question 35

T/F Gastropods are a diverse gorup

Answer 35

True | 3/4 of all species

Question 36

Define: Torsion

Answer 36

When the anus ends up by the neck. Gastropods

Question 37

Examples of Molluscs: Class Bivalvia

Answer 37

Clams, oysters, mussels, scallops

Question 38

What is significant about bivalvia

Answer 38

THey are suspension feeders

Question 39

Examples of Molluscs: Class Cephalopoda

Answer 39

Squids, octopuses, carnivores.

Question 40

What are Nautiloidea (ammonites)

Answer 40

Ancient cephalopods

Question 41

T/F Nautiloids have been found atop utah mountains

Answer 41

true

Question 42

Identifying feature of Annelids

Answer 42

bodies made of fused rings

Question 43

Three groups in annelids

Answer 43

Oligochaeta Polychaeta hirudinea

Question 44

Significant feature of Oligochaetes

Answer 44

Have sparse chaetae bristles made of chitin

Question 45

Polychaetes

Answer 45

Contain paddle like parapodia that work for gills and movement

Question 46

Class of Leeches

Answer 46

Hirudinea - blood sucking parasites | Secrete hirudin to prevent coagulation

Question 47

Define Chaetae

Answer 47

bristle made of chitin

Question 48

Groups of Ecdysozoans

Answer 48

Nematodes | arthropods

Question 49

Significant structure of Ecdysozoans

Answer 49

Cuticle covering body that is molted

Question 50

Nematods are:

Answer 50

Predetors that are largely parasites

Question 51

T/F Anthropods are a diverse group.

Answer 51

T | 2/3 of known species

Question 52

Body plan of anthropods

Answer 52

segmented exoskeleton w/ jointed appendages | Early there wasn't differentiation between segments

Question 53

Four subphyla of anthropods

Answer 53

Cheliceriformes (Arachnida) Myriapoda (millipedes) Hexapod (insects) Crustacea (crabs etc.)

Question 54

Significance of hox genes in anthropods

Answer 54

decrease in number of segments and increase in appendage specialization

Question 55

What as promoted with Jointed appendages

Answer 55

fitness

Question 56

Significant structures of millipedes

Answer 56

Oldest with jaws | 2 legs per "trunk" believed to be the first to make it to land

Question 57

T/F Hexapods were the first to develop wings

Answer 57

True

Question 58

Why did Hexapods "shrink"

Answer 58

as available oxygen declined, circulatory systems needed to be smaller

Question 59

Features of crustacians

Answer 59

Jointed appendages for locomotion and feeding. Have two antenna

Question 60

Common Echinoderms

Answer 60

Starfish

Question 61

T/F echinoderms are closest relative to Chordates

Answer 61

True

Question 62

Shared Characteristic of echinoderm and chordates

Answer 62

Dueterstome Mouth develops at the opposite end of blastopore Triploblastic

Question 63

Endoskeleton Features of echinoderms

Answer 63

Thin layer of epidermis | Hard/ calcium carbonate

Question 64

T/F Echinoderm nervous system has a brain and head

Answer 64

Fasle, | Nervous system exists but no brain and head is present

Question 65

T/F Initial development of echinoderms is bilateral

Answer 65

True