Module 7: Invertebrate I
- Page ID
- 24677
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- 7.1: Invetebrate Lab I
- After this lab, you will be able to state the phyla of the organisms discussed in the lab activities, use the characteristics of symmetry, coelom, embryo tissue layers, and patterns of development to differentiate between the different invertebrate groups and recognize and identify the sponge specimens viewed in the lab.
- 7.2: Reading - Sponges
- There are two phyla of sponges: Calcarea and Silicea. In this reading, you will examine the preserved sponges as well as some prepared slides of sponges and identify some structures.
- 7.3: Reading - Cnidarians
- In this reading, you will explore some animals from the phylum Cnidaria. Some examples of Cnidarians are hydras, jellyfishes, corals, sea anemones, and Portuguese man-of-wars. Some main characteristics of Cnidarians are radially symmetrical bodies, tentacles extending outwards, and hydrostatic skeleton.
- 7.4: Reading - Roundworms
- In this reading, you will learn how to dissect Ascaris roundworm as well as observe the Trichinella inside the tissue of the host.
- 7.5: Reading - Arthropods
- In this reading, you will find different types of arthropods as well as their characteristics, physical appearances, and dissection methods. Arthropods have an exoskeleton that cannot enlarge as the animal grows. As a result, it must be shed from time to time to allow growth. In many species, the egg hatches to produce a larva (pl. larvae) that does not look like the adult.