Biology II Lab (Quiz #3)

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Nematodes, Mollusks, Annelids, Arthropods, Echinoderms, and Chordata
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1

Protostomes

by its embryonic development, in which the first opening in the embryo becomes the mouth. ( eight-cell stage/ spiral cleavage)

2

Deuterostomes

the first opening (the blastopore) becomes the anus. (radial cleavage/ forming digestive tube)

3

What phylum are roundworms?

Phylum Nematodes

4

Characteristics of roundworms ?

Nonsegmented pseudocoelomates covered by a tough cuticle.

5

What are the important role of decompostion?

nematodes accelerate the decomposition process. Their feeding recycles minerals and other nutrients from bacteria, fungi, and other substrates and returns them to the soil where they are accessible to plant roots.

6

Name the parasite of Nematoda - roundworm in humans and plants?

Trichinella spirilis-> endoparasites

7

Most species-rich and morphologically diverse group in the lophotrochozoa is?

Mollusca (Mollusks)

8

Clade of protostome animals within the Spiralia is?

Lophotrochozoa (Ex. Trochophore larvae)

9

Which animals can be found in the Phylum of Mollusks?

snails, oyster, octopus, scallops, slugs

10

what are the characteristics of Mullusks?

marine, freshwater, and terrestrial

have four lineages

all have similar body plan ( muscular foot, visceral mass, and a mantle)

rasping organ= radula

11

Muscular foot is for?

movement

12

viceral mass contain?

most internal organs

13

a mantle is?

the tissue that drapes over the visceral mass and secretes the shell

14

The 4 lineage are?

Polyplacephora, Gastropods, Bivalva, and cephalopods

15

chitons have 8 calcium carbonate plates along their dorsal side, has a radula to scrape of algae and reproduce sexual and external. Belong to the class of?

Polyplacophora class

16

Snails, slugs, and nudibranchs, which have a large muscular foot on their ventral side (move by gliding and lack of shell) are under which phylum?

Gastropoda class

17

gastropods shell characteristics?

exoskeleton- for protection, secreted by special organ- mantle, can be righ or left handed.. different shapes.

18

Clams, mussels, scallops, oyster- two separate shells that are hinged, reproduce sexially, and live in ocean and some are in fresh water are?

Bivalves

19

squid, nautilus, octopuses, which have a well-developed head and a foot modified to form tentacles. Also have large brains and eyes with sophisticated lenses and reduced shell are?

cephalopoda class

20

Segmented worms, live in the sea, freshwater, and damp soil are in which phylum?

Phylum of Annelids

21

Annelids phylums are divided into which classes?

oligochaeta -earthworm

polychaeta- polychates

hirudinae- leeches

22

earthworm are in which class?

oligochaeta

23

oligochaeta characteristics are?

reduced head

bristle made of chitin called chaetae

24

earthwaorm eath the wai through the soil which does what?

extract nutrients as the soil maves through the alimentary canal. which help the earth, making earthworms valuable to

25

class polychaeta (segmented worms- marine mostly) characteristics?

wormlike, member of Polychaeta posses paddlelike parapodia (almost feet) that function as gilld and aid in locomotion.

26

leeches belong to what phylum?

Hirudinea

27

Hirudines phylum characteristics?

blood-sucking parasites

can be predators to protists

secrete an anesthetic to numb they prey and an anticoagulant

28

have a segmented body and jointed appendages, a usually chitinous exoskeleton molted at intervals, and a dorsal anterior brain connected to a ventral chain of ganglia

Arthropoda

29

which are the 3 phylum of arthropods?

arachnida, crustacea, and unaramia

30

insecta class described which animal?

insects

31

insecta class means?

jointed appendages, antenna, molt

32

diplopod class described which animal?

millipede

33

chilopod class described which animal?

centipede

34

unaramia has 3 classes which are?

  1. chilopod
  2. diplopod
  3. insecta
35

centipede, millipede, insects belongs to which phyla under arthropods?

unaramia

36

crustacea phylum has which type of animals?

lobsters and crabs

37

crustacea class means?

jointed appendages but boracic, antenna, mot

38

Arachnida phyla are what type of animals?

spiders

39

arachnida class means?

no antenna, molt, jointed appendages

40

unaramia, arachnids, and crustaceans are ?

arthropoda

41

the following subphylum Chelicerata, merostonata, crustacea, hexapoda, and insecta belongs to which phylum?

arthropoda

42

such as spiders, scorpions and horse crab belongs to which subphylum and phylum?

Chelicerata and arthropoda

43

horseshoe crab belong to which phylum?

Phylum Xiphosura

44

characteristics class characteristics?

have modified mouth

mouth parts: chelicerae -fangs / pedipalps -feelers

45

spiders fangs are called?

fangs- all spiders are poisonous, some just can't penetrate the skin

46

spiders feelers are called?

pedipalps -very sort, right up front

47

arachnids Phalangida type are?

daddy longlegs, not spiders, not poisons have no fangs, are herbivores chew on leaves

48

which subphylum are the crayfish, rollie-pollies, shrimps, lobsters?

crustaceans

49

unirania which contain which type of animal

centipedes and millipedes

50

centipedes are

all predator

fangs are modified legs up under the head

can get very lager in the tropical areas

1 set of leg per segment

51

mellipede are

all are junk feeder

make cyanide gas when threatened

2 set of leg per segment

52

subphylum hexapoda

insects which includes grasshopper, butterflies, beetles, and many others

53

hexapoda has 3 body regions

  1. head
  2. thorax
  3. abdomen
54

hexapoda can fly by

two pair of wings

55

insect mimicry

look like something else as a protective measure

56

examples of mimicry

Coral snake is poisonous, kind snake is not

–Not true mimicry–

In order for the mimicry to be successful the poisonous snake has to be more numerous than the mimic
–Probably warning colors

57

•Blending into evnvironment•Most common type

camouflage

Ex: walking stick or preying mantis

–Walking stick to protect from predators

–Preying mantis is predator but uses it for stealth in hunting

58

batesian camouflage

model=toxic

mimic= harmless

population of model has to be higher than of mimic

found in many butterflies

ex. monarch and viceroy

59

The Viceroy caterpillar will mimic both

the Monarch and the Queen butterfly depending on which is more populous in the area

60

fly and wasp mimic the what?

tarantula hawk

61

mullarian mimicry

do both model and mimic are toxic

don't know which is which

have developed the same body, colors, and toxicity

62

2 main type insect can mimic

pigment and structure

63

in the color, pigment which is the molecule within the cuticle that is that specific color

-white- uric acid (waste production)

-brown and black- melanin

-yellow, red, orange- pigments from food they eat

64

structure is develop by

surface cuticle itself, color reflect light off the shell and ridges

65

phylum echinoderms have which animals?

sea stars

66

deuterostomes are

echinoderm and chordates

67

Chordates and echinoderms share characteristics of deuterostomes, which are?

-Radial cleavage

–Development of the coelom from the archenteron

–Formation of the mouth at the end of the embryo opposite the blastopore

68

echinoderms are

slow moving or sessile marine animals

69

sea star have

a water vascular system

70

how does the water vascular system works?

a network of hydraulic canals branching into tube feet that function in locomotion, feeding, and gas exchange

71

echinoderms has 6 classes which are

  1. asteroidea
  2. ophiuroidea
  3. echinoidea
  4. crinoidea
  5. holothuroidea
  6. concentricycloidea
72

sea stars belongs to which class?

Asteroidea

they have multiples arms radiation from a disk

73

sea urchins and sand dollars, from asteroidea class, have ?

no arms

have five rows of tube feet that function movement

74

Phylum of chordata can be characterized by

a dorsal hollow nerve cord

a notochord

pharyngeal slits

post anal tail

75

phylum of choradata has 3 subphylum which are?

  1. subphylum Urochordata
  2. subphylum Cephalochordata
  3. subphylum vertebrata
76

the subphylum of vertebrate has 7 classes which are

1.Class Agnatha

2.Class Chondrichthyes

3.Class Osteichthyes

4.Class Amphibia

5.Class Reptilia

6.Class Aves

7.Class Mammalia

77

phylum of urochordata characteristic and animals

tunicates or sea squirts

sessile or planktonic marine organism, whose larvae losses general chordate forms

stucture of adult is highly modifiedIncludes sieve-like basket perforated w/pharyngeal gill slits, surrounded by cellulose sac called a tunic

78

Lancelets

Small, fishlike marine chordates that burrow in sand or mud belong to which subphylum and phylum?

subphylum cephalochordate and phylum of chordata