1. Define sessile. Name an invertebrate with a sessile adult stage.

Q: Compare the reproductive system of an earthworm with that of Ascaris. Be sure to note both…

A: Both ascaris and earthworms are kind of worms. Earthworms are beneficial to the soil,and ascaris is…

Q: Class: Hydrozoa Genus: Obelia Common Name: Coenosarc

A:

Q: Which is/are true of the mollusc radula a toothed structure is a synapomorphy of Mollusca is…

A: Introduction After the Arthropoda, Mollusca is the second-largest phylum of invertebrate animals.…

Q: In Scyphozoa, what is the function of gastric filaments and where would you find them?

A: The Scyphozoa are an exclusively marine class of the phylum Cnidaria, referred to as the true…

Q: Describe the following characteristics of ctenophores: common developmental stage digestive system…

A: Organisms can be classified on the basis of several characteristic features, organ system, cells…

Q: For each of the following classes of Arthropods, identify a feature unique to the class and at least…

A: Arthropods have invertebrate animal having an exoskeleton, a segmented body, and paired jointed…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.