Formal Lab Report
By Dillon Chafin
The Aquatic Ecosystems Unit is designed to introduce students to the study of zoology by introducing us to animal phyla found in aquatic systems. We discovered how the many different animal groups interact to form a dynamic living system. The Aquatic Ecosystems unit is presented in a taxonomic format starting with the simplest animals and working through to the most complex animals.
The Aquatic Ecosystems unit focused on several key aspects of zoology including feeding behavior, digestion types, skeletal or structural support, and locomotion. We observed how these systems are modified or specialized in the different animal groups and how these adaptations serve to assist the animals to function in their environment. This Unit covers the following phylum: Phylum Porifera, Phylum Cnidaria, Phylum Platyhelminthes, Phylum Annelida, Phylum Mollusca, Phylum Arthropoda, Phylum Echinodermata, Phylum Chordata, Food Webs, Competition, and Community Ecology.
Phylum Porifera- the materials used in this exercise were a microscope, slides, composition notebook, photographic atlas, and a camera. In experiment number one we obtained a prepared slide of a longitudinal-section through Grantia. We then sketched what you observe. Then we labeled the spongocoel, radial canal, ostia, apoplye, and incurrent canal on the diagram
provided. (pg. 2) We also drew arrows to represent the water flow through the sponge. Then, we obtained a prepared slide of a cross-section through Grantia. As you view the slide, sketch what you observe. We then labeled the same structures as in number two. In experiment number two, we obtained a prepared slide of spicules and sketched what we observed. (pg. 2) In exercise in number three, we Observed preserved specimens and Sketched or photographed each of the specimens provided. (pg. 3) We then labeled each sketch / photograph with the correct...