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General Biology II lab > Lab 8- Protostomecoelomates > Flashcards

Lab 8- Protostomecoelomates Flashcards

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1
Q

Moderm system of classification from broadest to smallest category

A
  • Kingdom- phylum-class- order-family-genius-species.
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2
Q

Protostomes

A
  • spiral cleavage
  • blastopore becomes the mouth
  • schiocoelous coelom
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3
Q

Major phyla

A

Mollusca, Annelida and Arthropoda

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4
Q

Deuterostomes

A
  • Radial cleavage
  • Blastopore becomes the anus
  • entrocoelous coelom
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5
Q

Major Phyla

A
  • Echinodermata and chordata
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6
Q

In this week we will examine:

Phylum

A

Plylum:
- Annelida
- Arthropoda
- Mollusca
- Echinodermata

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7
Q

Class

A
  • Oligochaeta
  • Malacostraca
  • Insecta
  • Bivalvia
  • Cephalopoda
  • Asteroida
  • Echinoidea
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8
Q

Representative

A
  • Earthworm
  • Crayfish
  • Grasshopper
  • Clam
  • Squid
  • Sea star
  • sea urchin
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9
Q

phylum Annelida
Ancestral traits:

A
  • Bilateral symmetry
  • coelom
  • triploblasty
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10
Q

Derived traits

A
  • One or more pair of bristles
  • body segmentation
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11
Q

Classes

A
  • Polychaeta (“many bristles”)
  • Oligochaeta (“ few bristles”)
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12
Q

Mollusca
Ancestral traits:

A
  • Bilateral symmetry
  • coelomate
  • triploblastic
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13
Q

Derived traits

A
  • shell composed of calcium carbonate
  • mantle
  • muscular foot
  • ctenidia(gills)
  • radula (synamorphy that lost in some classes)
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14
Q

slow moving

A

snails and slugs

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15
Q

relatively sedentary bivalves such as

A

clams

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16
Q

types of molluscs
highly active cephalopods

A
  • cuttlefish, squid, octopous
17
Q

Class bivalvia

A
  • bivalve shells
18
Q

Pacific ocean giannt clam (tridacna)

A

Grows up to 4 feet across and weighs up to 500 pounds

19
Q

Anatomy of squid
Ink:

A

organ that stores a balck subtance that serves to deceive potential predators and allow scape

20
Q

mantle

A
  • main part of the body is the mantle. squid have no external shell so this soft dotted and colored tube encloses the main part of the body. all the small dots on it are pigments cells called chromatophores
21
Q

tentacle

A
  • at the enterior end. There are 8 arms and 2 long tentacles ending in a flattened club with suckers. the tentacles are used to strike out and capture prey. the eight arms are used to hold onto prey when captured and bring food into its mouth
22
Q

eye

A
  • very similar to ours (mammmalian eyes)
23
Q

heart

A
  • squid have 3 hearts.
  • Brachial (gil) hearts- there are 2 and they are located at the base of the gill to pump blood from the body to the gills.
  • systemic heart- is larger than the other and is located between the branchial hearts.
24
Q

siphon (funnel)

A
  • snall tuve on the ventral side of a squid/ octopous that can be direct in any direction for jet propulsion
25
Q

radula

A
  • the scraping organ of feeding in a mollusk in cephalopods, it is found inside the beak
26
Q

Arthropoda
- ancestral traits

A
  • bilateral symmetry
  • coelomate
  • triploblastic
27
Q

Derived traits

A
  • cuticle composed of chitin
  • segmentation
  • joint appendages
  • molting
28
Q

Phylum arthropoda
- sub-phylum chelicerata

A

includes: spiders, horseshoe crabs, sea spidrs, scorpions and mites

29
Q

sub-phylum uniramia

A

includes: insects, millipedes and centipedes

30
Q

sub-phylum crustacea

A

includes: crabs, lobsters, crayfish, shrimp, krill, woodlice and barnacles

31
Q

sub-phylum uniramia

A
  • appendages end at a single point, one pair of atennae
    -class insecta (grasshopper)
32
Q

sub-phylum crustacea (biramia)

A
  • branched appendages, two pairs of antennae
  • class mlacostraca (crayfish)
33
Q

class malacostraca

A

crabs, lobsters, shrimp, crayfish

34
Q

In this lab we will examine:

A
  • clams (Mollusca: Bivalvia)
  • earthworms (Annelida: Oligochaeta

General Biology II lab (11 decks)

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