Download Sponges and Cnidarians Students

Origin


Evolution
Collar cells
 Uses of collar cells
Diversity
Species #
 Variety

 Kingdom
 Phylum
 They are mostly
 # of cells
 Body contains
 Symmetry
 Interior surface
 Choanocyte
 Beating
 Create
 Capture
 Collar is made
of
 Why?
 The food
particles then
 How?
 Efficient? Non-efficient?
 Why?
▪ Lots of collar cells working together
 Made of?
 Spicules –
 Spongin –
Fun fact:
When you wash
with natural
sponges, this is
the portion you
wash/exfoliate
with!

Reproduce asexually
 By? 2 months


Larva
Adults
Budding
Sponge
Love
Scene #1
Sponge Love
Scene #2
Sexual
1. Asconoid


Def
Characteristics
2. Syconoid


Def
Characteristics
3. Leuconoid


Def
Characteristics
 Kingdom:
 Phylum:
 Class Calcarea
 Class Hexactinellida
 Class Demospongiae
 Spicules
 Made of
 Shape
 Body types?
 Spicules
 Made of?
 Description
 Body types?
 Often called?
 Spicules
 Made of
 Description
 Body types?
 Other characteristics

Kingdom
 Phylum

Examples:

Where do they live???



Symmetry
Head region?
Two basic types:
1. Name, def, examples
2. Name, def, examples

Polyp –
 Lifestyle of polyps?
 Body shape?
 Mouth

Medusa –
 Lifestyle?
 Body shape?
 Mouth


Body forms?
Reproduction
 Polyp
 Medusa

Two layered body
 Epidermis –
▪ Def
▪ Derived from?
 Gastrodermis –
▪ Def
▪ Derived from?
▪ Lines the
▪ Main function

Tentacles contain
 Function
 Characteristics
 Nematocyst
 Stinging cells
 Contain
 When do they uncoil?
 Contain

Class Hydrozoa

Class Scyphozoa

Class Cubozoa

Class Anthozoa





Solitary
Colonial
Reproduce?
Where do they live?
Examples:
Polyp
Medusa





Movement
Body form
Where do they live?
Organs?
Examples:





Movement
Body form
Where do they live?
Characteristics?
Examples:




Movement
Body form
Where do they live?
Examples:
 Exist in three subclasses
▪ Subclass Hexacorallia
▪ Subclass Ceriantipatharia
▪ Subclass Octocoral

Human Uses
 Bioindicators:
▪ Sponges
▪ Filter
▪ Pollutants
▪ Corals:
▪ sensitive to
 Help protect
 Biomedical/Pharmaceutical industry
1. ?
2. ?
 Consumer products
1. ?
2. ?

In the Environment
 Form of
 Many symbiotic relationships
 Corals and Sponges
▪ The most abundant
▪ Base of
▪ May be used as
▪ Ex:

Other relationships
 Cnidarians with
▪ Form
(protists)—
 Homes for
▪
use sponges as homes
▪ Coral reefs provide

Protection
 Fish use
(Ex:
from sea anemone,
 Coats itself with
▪ Therefore the sea anemone does not
▪ Tentacles protect
)