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45 Cards in this Set

  • Front
  • Back

Kingdom including multicellular heterotrophs usually characterized by their ability to move is _______________.

Anamalia/Animal Kingdom

Phylum of animals meaning "pore bearing"

Porifera

Poriferan refers to some type of ______________.

sponge

Sponges are the _______________of all organisms in the animal kingdom.

Simplest

What level of organization do sponges exist?

Class

Sponges sometimes referred to as a ________ of cells because of their lack of tissue.

Colony

Sponges lack a backbone so they are called..

Invertebrates

All sponges are __________ because they live in water.

Aquatic

Concentration of salt in water is called _______________.

Salinity

Most sponges considered ____________b/c they live in water with salinity 3.5% or above.

Marine

Some sponges are considered ____________b/c they live in water with salinity less than 3.5%

Freshwater

Study of body form

Morphology

Some sponges have tubular body structure with many planes that create identical parts. This is _________________ symmetry

Radial

No symmetry = ___________

Asymmetry

Sponges have many small openings on their bodies called ______________ (simple term)

Pores

Small incurrent pore on sponge that draw water in

Ostium

Large excurrent pore that send water out of a sponge

Osculum

Large central opening inside most sponges

Spongocoel

Sponges have how many cell layers?

2

Inside skin layer

Endoderm

Outside skin layer

Ectoderm

The ectoderm is used to _____________ the sponge

Protect

Middle non-cellular layer of sponge

Mesenchyme

In the mesenchyme, spiked structures that form a skeletal framework to support the sponge are called ______________.

Spicules

Collar cells = __________________

Choanocyte

Choanocytes have a whip-like tail that creates a water current through pores called ______________.

Flagella

Microscopic animals and plants that get stuck in the sticky collar cell's that choanocytes use for food are ________________.

Plankton

Sponges are classified as ____________ _____________ because of how they obtain their food.

Filter feeders

In the mesenchyme, cells called ______________ digest and move around materials.

Amoebocytes

Sponges are classified by the material that makes up their ________________?

Spicules

Calcareous (chalk) sponge's spicules are made of what?

Calcium

Silica (glass) sponge's spicules are made of what?

Silicon/ Silicon Dioxide

Elastic sponges have spicules made of _______ and elastic ___________ fibers.

Collagen and Silicon

Adult sponges do not move, and are therefore ____________.

Sessile

At what stage in a sponges life are they motile?

Larva

Sponges exchange gases with their watery environment through the process of simple ________________.

Diffusion

Reproduction that involves the production of two haploid cells that then unite to form offspring is called ________________ reproduction

Sexual

Most sponges produce both sperm and egg, which makes them _______________.

Monoecious

Sperm swims through the water and unites with an egg. This is a process called ________________.

Fertilization

Sperm cells fertilize the egg INSIDE the sponge's body. This is called __________ fertilization

Internal

Reproduction that involves the production of diploid cells by one parent is called _____________ reproduction.

Asexual

sponges can reproduce asexually by growing new sponges off of their sides. This is called _____________.

Budding

Sponges can reform lost/damaged body parts by _________________.

Regeneration.

Pieces of detached sponge can grow and form a whole new sponge. This is called ____________

Fragmenting

Sponges make groups of cells enclosed in an outer protective layer that can remain dormant until conditions are ideal for living. These cell packets are called _______________.

Gemmules