Phylum Cnidaria Worksheet 4r6uw

Activity No. 3 Cnidarians Name: Date Performed:

Score: Professor:

RESULTS: 1. Draw the following specimen of cnidarians on the space below. Identify the genus and label the parts.

Obelia hydroid

Hydra sp.

Galaxea fascicularis

Favia stelligera

Trachyphyllia lelandi

Favites cf. halichora

Herpolita sp.

Platygyra sp.

Fungia sp.

Mastigias papua

Acrometoides

Cryptodendium adhesium

Montastrea curta

Oulastrea alta

Heterractis sp.

Heliopora coerulea

Goniopora undulata

Porites syna

Pocillopora sp.

GUIDE QUESTIONS: 1. Classify the specimen according to classes, body structure (colonial or solitary), and dominant stage (polyp or medusa). Specimen Obelia hydroid Hydra sp. Galaxea fascicularis Favia stelligera Trachyphyllia lelandi Favites cf. halichora Herpolita sp Platygyra daedalea Fungia sp. Sea anemone Mastigias papua Acrometoides Cryptodendium adhesium Montastrea curta Oulastrea alta Heterractis sp. Heliopora coerulea Goiniopora undulata Porites syna Pocillopora sp.

Class Hydrozoa Hydrozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Schyphozoa Schyphozoa

Body Structure Colonial Colonial Colonial Colonial Colonial Colonial Solitary Colonial Solitary Solitary Solitary Solitary

Dominant Stage Polyp Polyp Polyp Polyp Polyp polyp Polyp Polyp Polyp Polyp Medusa Medusa

Anthozoa

Colonial

Polyp

Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa

Colonial Colonial Colonial Colonial Colonial Colonial Colonial

Polyp Polyp Polyp Polyp Polyp polyp

2. Why do cnidarians belong to metazoans? The cnidarians belong to the metazoans because of its radial symmetry that is theorized to have evolved from the metazoans. 3. What are the bases of classifying cnidarians? Bases used for classifying cnidarians are morphology, body structure (polyp or medusa), classes (hydrozoa, anthozoa, or scyphozoa) and lifestyle (solitary or colonial). 4. What is the ecological importance of cnidarians? Cnidarians are predators and prey. They have neurotoxins that can be used for medical research. They can be used as jewelry or infrastructures and habitat for other animals.