BIOL1800 Lab Exam 3

What is region 1?

Region of Maturation

What is region 2?

region of elongation

Eudicot stem

Eudicot Root

Monocot Root

Monocot Stem

How old is this?

3 years old

Aurelia

Cnidaria, Scyphozoa
Medusa Form

Aurelia

Cnidaria, Scyphozoa
Medusa Form

Polyorchi’s Medusa

Cnidaria, Hydrozoas, polyp form

Obelia

Cnidaria, Hydrozoas, polyp form

Gonionemus

Cnidaria, Hydrozoas, polyp form

Gonionemus

Cnidaria, Hydrozoas, polyp form

Gonionemus

Cnidaria, Hydrozoas, polyp form

Sea Anemone

Cnidaria Anthozoa Polyp

Coral

Cnidaria Anthozoa Polyp

Octopus

Mollusca Cephalopoda

Loligo (Squid)

Mollusca Cephalopoda

Moniezia Expansa (Sheep tapeworm)
Platyhelminthes, Cestoda

Chiton

Mollusca, Polyplacodphora

Land Snail

Mollusca, Gastropoda

Limax (Garden Snail)

Mollusca, Gastropoda

Anodonta (Freshwater Clam)
Mollusca, Bivalvia

Planaria
Platyhelminthes, Turbellaria

What is the Black?

The Gastrovascular Cavity

Mussel Glochidia

Mollusca Bivalvia

Taenia (Tapeworm)
Platyhelminthes, Cercomeromorpha

What is the most advanced organ system in Tapeworms?

Reproductive

Nereis Parapodium

Polychaeta

What are the 3 functions of the Parapodium?

Locomotion, Gas exchange, Defense

Earthworm Intestinal Region

Trichinella spiralis
Nematoda

Whats the purple and green?

Green = muscle
Purple = Larvae

Leech

Annelida, Hirudinea

Where are the posterior and anterior sucker?

Anterior sucker = small end

Posterior Sucker = Large circle end

Ascaris male
Nematoda

Ascaris female
Nematoda

Where is the pseudocoelom in Ascaris?

The “Empty” space

left to right name the specimen

Annelids

Lumbricus, Leech, Nereis

Ascaris Lumbricodes

Nematoda

Identify the Male and Female

Female on left

Male on right

Leeches

Annelida Hirudinea

Ascaris Suum (Pig roundworms)

Nematoda

Sandworm

Annelida

Earthworm

Annelida Olgiochaeta

Aphrodia (Sea Mouse)

Annelida Polychaeta

Obelia Medusa

Hydrozoan

How many tissues in Cnidera?

ectoderm and endoderm

Nematodes have a?

Pseudocoelom

What is the gill used for?

Gas exchange and feeding

What kind of system does Cephalopoda have?

Closed

What is the pointer pointing at?

Typhlosole, increases absorption of nutrients

Obelia Hydroid

Hydrozoan Polyp

Planula Larvae

Cnidaria

Motile

Sponge Spicules

Porifera

What are Sponge Spicules made of?

Silica

Sponge Fibers

Porifera

What are sponge fibers made from?

Spongin

Where is the pin in?

Crop

What is the structure below the pin?

Gizzard

Identify 1-5

1. Gill

2. Adductor Muscle

3. Foot

4. Visceral Mass

5. Mantle

What is each shell of the calm called?

Valve

Hydra Nematocysts

Hydrozoa

Large top opening in sponges?

Osculum

Space inside the sponge?

Spongocoel