HW # 94- TBA- no homework over Spring Break

Warm up

How many different kinds of animals are there? Are there more insects than mammals? What about insects compared to fish?

Week 28, Day Four

Warm up Response

N

Homework Response/Check• Did you complete your essay outline?

Goals for Today• Examine Protozoa and Invertebrates using

compound and dissecting scopes.

• View the power point and take notes.

Currently, textbooks from the United States use a system of six kingdoms (Animalia, Plantae, Fungi, Protista, Archaea, and Bacteria)

Protozoa (Protista)• single cell• microscopic to 5mm• cousins with foraminifera (shells form limestone-

which is what the Egyptian pyramids were made of)

• Important in soi, ocean, and fresh water food chains

• can carry disease (Plasmodium vivax) – ex Malaria

Amoeba proteus

Volvox sp.

Paramecium

Vorticella

Stentor

Euglena

Amoeba proteus

Difflugia sp. Didinium Eats green alga (Spirogyra) Eats Paramecium

Blepharisma Bursaria truncatella Spirostomum

Phylum- Porifera (sponges)

• Among the simplest, multicellular animals

• Unspecialized tissues• No organs

Phylum- Cnidaria

• Hydra• Freshwater• Simplest animals with

definite tissues• Stinging tentacles (filled

with nematocyst threads)

• Up to 25 mm• Ability to regenerate lost

body parts

Phylum- Platyhelminthes (flatworms)

• Bilateral symmetry• Internal reproductive system• Layers of muscles• Simple nervous system• Exhibit an ability to learn• Free living (not parasitic)

Phylum- Arthropoda

• Includes crustaceans (crabs, lobsters, shrimp)

• Provide abundant food for fish• Form an essential link in

aquatic food chains

Amoeba proteusEuglena gracilisParamecium multmicronucleamStentor CoeruleusSpirostomum ambiguumVolvox aureusDugdsia dorato cephala??Hydra littoralisDaphnia magna