The cells that move throughout the sponges body wall to deliver food to the organisms cell
is what? - Amoebocytes Skeletal support in sponges may be provided by what? - Spicules
of calcium carbonate Spicules of silicon dioxide Fibers called spongin Many cnidarians
have two distinct body forms...
The cells that move throughout the sponges body wall to deliver food to the organisms cell
is what? - Amoebocytes Skeletal support in sponges may be provided by what? - Spicules
of calcium carbonate Spicules of silicon dioxide Fibers called spongin Many cnidarians
have two distinct body forms/stages called what? - Polyp and medusa Anthozoans include
what? - Sea anemones and corals Adult sponges have what? - Body walls with many pores
Hermaphroditic organisms do what? - Produce egg and sperm Characteristics of sponges
are what? - Non symmetrical; lack of organization into tissues and organs; Possess cells
that recognize other sponge cells Outer layer of a cnidarian is called what? - Epidermis The
inner layer of a cnidarian is specialized for what? - Digestion Water leaves the interior of a
sponge through what? - Osculum What is a spicule? - Hard spike-like structures in the wall
of a sponge A coral is a member of what class? - Anthozoa Ctenophores are the largest
organisms that move by what? - Cilia What is drawn through the pores of a sponge and out
through the osculum? - Water What is the jellylike matter between the ectoderm and the
endoderm (in cnidarians)? - Mesoglea What cavity serves both digestive and circulatory
purposes in some cnidarians? - Gastrovascular cavity What is regrowth of missing tissues
or organs? - Regeneration What is a network of cells that lacks a central control; impulses
pass in any or all directions to produce a generalized response? - Nerve net What is a free-
swimming, ciliated larva of a cnidarian? - Planula What is an aquatic invertebrate of the
phylum Porifera that attaches to stones or plants and that has a porous structure and a
tough, elastic skeleton? - Sponge What is a stinging cell of a cnidarian? - Cnidocyte What is
the name of the flagellate cells that line the cavities of a sponge? - Choanocyte Planarians
can produce asexually by doing what? - Fission Which phylum do roundworms belong to? -
Nematoda Roundworms have a fluid-filled cavity called a what? - Pseudocoelom A
roundworms digestive tract has how many opening(s)? - 2 Flatworms take up oxygen and
release carbon dioxide by the process of _________, which occurs across the body of the
animals. - Diffusion The _________ is a protective cellular covering of the bodies of
endoparasitic flukes that prevents them from being digested by their hosts. - Tegument
_________ are rectangular body sections of tapeworms. - Proglottids Organisms that feed
by using cilia to sweep food into their mouths are called what? - Rotifers Concentration of
sense organs at the anterior end is called what? - Cephalization A planarian takes in food
through what? - Pharynx What is a noncellular layer that protects a roundworm? - Cuticle
What is a type of reproduction where unfertilized eggs into adults? - Parthenogenesis What
is a parasitic flatworm of the class Trematoda and monogenea? - Fluke What is a host that
gives food and shelter to immature stages of a parasite? - Intermediate host What is the
host from which an adult parasite get its nourishment and in which reproduction occurs? -
Primary host What is the name of the head of a Tapeworm, which has hooks and suckers to
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