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

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


Play button


Play button




Click to flip

91 Cards in this Set

  • Front
  • Back
Animalia are
chemoheterotrophic eukaryotes with a multicellular diploid stage and participate in sexual reproduction
Animalia bodies are
Animals evolved true tissue which allows
Radial symmetry means that the symmetry of the body is
in any direction
Bilateral symmetry means that

the symmetry of the body is only in one direction

A diplooblastic cell has two layers, the
ectoderm (external) and the endoderm (internal)
A triploblastic cell has three layers, the
endoderm (external), ectoderm(internal), and the mesoderm (middle)
Phylum porifera is composed of
aquatic sponges
Porifera are mostly
Porifera lack
true tissue
Porifera adults are
sessile (benthic)
Porifera larvae are
The internal skeleton of porifer are supported by
spongin (protien) and spicules (silical or calciu)
Porifera reproduce mostly
Porifera filter water in to the sponge through the
Porifera feeding cell that lines the inside of their body is the
The interior of the porifera is called the
Porifera spew the water current out of the
The phylum cnidaria consists of
jellyfish, anemones, and corals
Cnidaria have a __________ symmetry
Cnidaria have ____________ tissue
Cnidaria have three distinct life cycle stages which are
the polyp (asexual, sessile), the medusal(sexual, free floating), and the larval (free swimming)
For this card draw a cnidria diagram
For this card draw a porifera diagram
The tree classes of cnidaria are
the anthazoa (corals and anemones), scyphozoa (true jellies), and hydrozoa
Anthazoa are ______ dominant
Scyphozoa are ______ dominant
Hydrazoa alternate between
polyp and medusa
For this card draw the obelia life cycle
Spongin and spicules support the
internal skeleton
Bilateral animals often display
Cephalization is
the concentration of nervous system in a cluster
Worms have three types of embryonic development which are
acoelomates (no cavity), psudeocoelomates (false cavity), and Eucoelomates (true cavity).
Acoelomates have __________ tissue between gut and body wall to hold organs in place
Pseudocoelomates have __________ in the body cavity in contact with the endoderm and organs are loosely held in place. It is partially lined with mesoderm
Eucolomates have a body cavity lined with the ________
Coelom functions include
circulation, digestion, hydrostatic skeleton, and space for internal organs
The phylum platyhelminthes contains
flatworms and tapeworms
For this card draw the planarian anatomy
For this crd draw the tapeworm anatomy
The phylum nemotoda contains
round worms
Nemotoda are psuedoceolomates meaning that they have
fluid in the body cavity
Nemotoda are
The phylum annelida contains
segmented worms including earthworms, seaworms, and leeches
For this card draw the earthworm anatomy
For this card draw the earthwom cross section
Segmentation refers to a body being composed of
repeating segments
Parapodia are
unjointed lateral outgrowths that bear the chaeta
Chaeta are
chitinous bristles found on annelids, arthropods, or insects
The "tube within a tube system" refers to
and inner tube (the gut) encased in an outer tube (the body wall, skin)
The hydrostatic skeleton is fluid filled and moves by
muscle contractions that change the body shape
Flatworms are acoelomate which means they lack a
A coelom is the
fluid filled space between the outer body and the digestive tube
For this card draw the planaria prepared slide diagram
The scolex is
the anterior of a tape worm composed of barbs and suckers
The proglottids are
the reproductive segments on tapeworms
Proglottids are filled with
fertilized eggs
An incomplete digestive tract has
only one opening
A complete digestive tract has
two openings
Taenia have ________ digestive tracts
Chaetae in annelids extend from the body segments and function in
Earthworms are deposit feeders meaning
they burrow through sediment and digest organic material within it
The clitellum is
the smooth saddle like structure on the middle of the earthworms body that functions in reproduction
The typhlosole increases
intestine surface area to provide more effective digestion
The phylum mollusca contains
shelled animals such as snails, clams, and oysters as well as unshelled animals like octopi, slugs, and squid
The class gastropoda contains
snails and slugs
The class bivalvia contains
clams, oysters, and mussels
The class cephalopoda contains
squids, octopi, and nautilus
For this card draw the mollusk internal anatomy
slide 5
The phylum arthropoda contain
bugs that have body segmentation, jointed appendages, and an exoskeleton of chitin. Includes trilobites, spides, crabs, scorpions, and centipedes.
Arthropoda share the general 3 characteristics
body segmentation, jointed appendages, and exoskeletons of chitin
The subphylum trilobitomorpha contains
trilobites, who have extensive body segmentation
The subphylum cheliceriformes contains
crabs, spiders, mites, scorpions
The subphylum myriapoda contains
millipedes and centipedes
The subphylum hexapoda contain
The subphylu crustacea contains
lobsters, crabs, shrimp, and barnacles
Crustacea have two pair of _____ and _____ limbs
two, biramous
Hexapoda have
Cheliceriforms have
fusion of segments with anterio appendage modified as chelicerates
The general mollusk body plan consists of these three parts
visceral mass, the foot, and the mantle
The visceral mass of a mollusk is
a sack containing internal organs
The mantle of a mollusk is
a thin tissue layer that secretes the shell
Gastropoda have a feeding structure called the radula which
is locate in the moth and is covered with smalle teeth
Most bivalva are this kind of feeder
filter feeders
Bivalves contain two valves connected at the
For this card, draw the clam anatomy
Cheliceriformes are named for the appendges near their mouths called
Chelicerae are
appendeges near the mouths of cheliceriformes
Hexapoda have ______ major regions and _______ legs
three, six
holometabolous metamorphosis is the process in which
larva change into adults that are substantially different in morphology
The pupa is
an intermediate form in which larval tissues are restructured to form the adult