Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/49

Click to flip

49 Cards in this Set

  • Front
  • Back

Aboral vs oral side

Aboral side up, tube feet on ground


Oral side up, tube feet exposed upward

What are Grantia spicules?

Needles of calcium carbonate

What is the purpose of Grantia spicules?

They provide structural support and deter predators.

Hydra classification

Domain: Eukarya


Kingdom: Animalia


Phylum: Cnidaria


Class: Hydrozoans

Hydra body plan

Radically symmetrical polyp

Hydra mouth and tentacles

Back (Definition)

Planarian classification

Domain: Eukarya


Kingdom: Animalia


Phylum: Platyhelminthes


Class: Turbellaria

Planarian auricles And eyespots

Back (Definition)

Planarian mode of nutrition

During feeding, a muscular, tubelike pharynx extends out from the mouth and sucks food

Rotifer classification

Domain: Eukarya


Kingdom: Animalia


Phylum: Rotifera

Rotifer corona, foot, and toe

Back (Definition)

Cnidarian classification

Domain: Eukarya


Kingdom: Animalia


Phylum: Cnidaria

Cnidarian body plan

Back (Definition)

Porifera sponge classification

Phylum: Porifera

Porifera osculum and ostia

Back (Definition)

Class Anthozoa

Sea anemones, coral, and sea fans


Solitary (anemones) or colonial (coral) polyps that lack a medusa stage

Classification of all animals

Domain: Eukarya


Kingdom: Animalia


Supergroup: Opisthokont

Class Scyphozoa

Marine jellies


Mouth surrounded by tentacles


Rhopalia (clusters of sensory cells on edge of “bell”)

Phylum Cnetophore diversity

Comb jellies


8 rows of comb-like plates of fused cilia


Diploblastic


Bilateral symmetry


2 tentacles covered with colloblasts

Grantia xs

Back (Definition)

Porifera body plan

Outer epithelium: water comes in ostia and exits osculum


Mesohyl: gelatinous matrix, spicules, spongin, amoebocytes


Choanocytes: collar cells, flagellated to circulate water, engulf food from passing water

Porifera diversity

Sponges

Cnidaria diversity and body plan

Corals jellies hydras anemones


Radial symmetry


Diploblastic

Class Hydrozoa

Hydroids, hydra, Portuguese man of war


Most have both polyp and Medusa stage (polyp often colonial: Portuguese man of war)

Platyhelminthes diversity

Flatworms dorsoventrally flattened


Ciliated


Acoelomate


Parasitic or free living


Incomplete digestive tract


No circulatory system


Excretory system


Simple nervous system


Sexual reproduction


Hermaphroditic

Platyhelminthes mode of nutrition

Only one opening, pharynx


Metabolic wastes usually excreted into gut, eliminated through mouth

Platyhelminthes scolex

Class cestoda: tapeworms


Parasitic, adult attaches to wall of host intestine using scolex

Phylum nematode diversity

Roundworms


Ecdysozoa/moult


Parasitic or free living


Pseudocoelomates


Unsegmented


Complete digestive tract


No circulatory system


Sexual reproduction

Subphylum Chelicerata

Sea spiders, horseshoe crabs, scorpions, spiders, and mites


Body has 2 tagmata: cephalothorax and abdomen


6 pairs of appendages: Chelicerae- one pair as pincers or fangs. Pedipalps- one pair for sensing, feeding, or reproduction. Walking legs- 4 pairs

Subphylum Crustacea

Crabs, lobsters, crayfish, shrimps, barnacles, pillbugs


2 pairs of antennae


3 or more pairs of legs


Appendages are biramous (branch in two)

Subphylum Myriapoda

Millipedes and centipedes


Terrestrial


Head with antennae and jaw-like mandibles


Trunk with legs

Subphylum Hexapoda

Insects


Live in most terrestrial and freshwater habitats


3 tagmata: head, thorax, abdomen


Undergo metamorphosis: incomplete and complete

Phylum Echinodermata diversity

Sea stars, brittle stars, sea urchins, sand dollars, sea cucumbers


Exclusively marine


Coelomate


Endoskeleton of calcium plates

Class Asteroidea

Sea stars and sea daisies


Tube feet with suction cups


Have 5 arms or multiples of 5


Can regenerate lost arms

Class Echinoidea

Sea urchins and sand dollars


Lack arms


Double rows of tube feet


Protective moveable spines

Phylum Mollusca

Gastropods, bivalves, cephalopods

Class gastropoda

Internal fertilization


Limpets, snails, slugs, nudibranch


Head with pair of tentacles with eyes


Coiled shell


Radula


Torsion: visceral mass rotates 180 degrees during development

Class Cephalopoda

Squid, octopus, nautilus


Active predators


Closed circulatory system


Highly developed nervous system

Class Bivalva

Clams, scallops, mussels, oysters


No radula or head


Have two shells (valves) hinged together (adductor muscles counter hinge ligament)


Suspension feeders


Water enters through inhalant siphon and exits through exhalant siphon

Class Polyplacophora

Chitons


Shell of 8 dorsal plates


Grazing herbivores


No head

Phylum Annelida diversity

Segmented worms


Earthworms, leeches

Class Polychaeta

Clamworms, scaleworms, lugworms, sea mice, tubeworms


Paired parapodia on segments

Class Oligochaeta

Earthworms, leeches


Clitellum found in all members


Few chaetae

Phylum Anthropoda

Most successful animals


Segmented


Jointed appendages


Coelomate


Segmentation, exoskeleton, jointed appendages

Clam recognize anatomy:


Gills, mantle, siphon, foot, adductor muscle, umbo, foot

Back (Definition)

Clam gill function

Exchange gases and trap food

Clam mantle function

Secretes the shell and acts as a respiratory organ

Clam siphon function

Usually water enters the mantle cavity through the inhalant siphon, moves over the gills, and leaves through the exhalant siphon.

Clam foot function

Enables the clam to burrow itself in mud or sand