Biology - M. Murphy
Lab: Invertebrates
Lab: Invertebrates
Next, Use the key below to identify the invertebrate phylum of the organism
shown.
Remember, always start with step one for each new organism.
shown.
Remember, always start with step one for each new organism.
Biology - M. Murphy
Lab: Invertebrates
Lab: Invertebrates
Correct! Sponges are in the phylum Porifera.
Before moving on, watch the following video and answer the question(s).
Each organism in this lab will have a video to watch and at least one question to
answer. Type your question answers in a Word document for upload to the lab
dropox.
Porifera video: https://www.youtube.com/watch?v=RmPTM965-1c&list=PLFF5FEEA48AF4A163
Porifera question:
1. Describe what the green dye in the video represents and the role of water currents in
this process.
Before moving on, watch the following video and answer the question(s).
Each organism in this lab will have a video to watch and at least one question to
answer. Type your question answers in a Word document for upload to the lab
dropox.
Porifera video: https://www.youtube.com/watch?v=RmPTM965-1c&list=PLFF5FEEA48AF4A163
Porifera question:
1. Describe what the green dye in the video represents and the role of water currents in
this process.
Dichotomous Key for Invertebrates:
1a. Animal has no regular body symmetry ........................................................ Porifera
1b. Animal has regular body symmetry ............................................................. go to 2
2a. Animal has radial body symmetry ............................................................... go to 3
2b. Animal has bilateral symmetry .................................................................... go to 4
3a. Animal has an endoskeleton ...................................................................... Echinodermata
3b. Animal does not have an endoskeleton ..................................................... Cnidaria
4a. Animal has one digestive tube opening ...................................................... Platyhelminth
4b. Animal has two digestive tube openings ..................................................... go to 5
5a. Animal has a pseudocoelomate body plan ................................................. Nematoda
5b. Animal has a coelomate body plan ............................................................. go to 6
6a. Animal has a chitin exoskeleton and jointed appendages .......................... Arthropoda
6b. Animal does not have a chitin exoskeleton or jointed appendages ............ go to 7
7a. Animal body is formed by repeating ring segments .................................... Annelida
7b. Animal body is not formed by repeating ring segments .............................. Molluska
1a. Animal has no regular body symmetry ........................................................ Porifera
1b. Animal has regular body symmetry ............................................................. go to 2
2a. Animal has radial body symmetry ............................................................... go to 3
2b. Animal has bilateral symmetry .................................................................... go to 4
3a. Animal has an endoskeleton ...................................................................... Echinodermata
3b. Animal does not have an endoskeleton ..................................................... Cnidaria
4a. Animal has one digestive tube opening ...................................................... Platyhelminth
4b. Animal has two digestive tube openings ..................................................... go to 5
5a. Animal has a pseudocoelomate body plan ................................................. Nematoda
5b. Animal has a coelomate body plan ............................................................. go to 6
6a. Animal has a chitin exoskeleton and jointed appendages .......................... Arthropoda
6b. Animal does not have a chitin exoskeleton or jointed appendages ............ go to 7
7a. Animal body is formed by repeating ring segments .................................... Annelida
7b. Animal body is not formed by repeating ring segments .............................. Molluska
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