Vocab
This group include the cephalopods, gastropods, and bivalves
What is phylum Mollusca?
What is the lophophore?
In molluscs, this tissue is what actually secretes material for the shell
What is the mantle tissue?
These organisms are sometimes referred to as 'sea feathers' or 'feather stars'
What are crinoids?
This is how echinoderms move from place to place
What are tube feet?
This is a ribbon-like extension containing small, sharp teeth that is found in many molluscs
What is a radula?
These are considered to be the 'most successful soft-bodied invertebrates'
What are bivalves (would also accept molluscs in general)
These organisms likely have the highest brain-to-body mass ratio on the planet
What is are the octopuses?
In addition to sea sponges, these marine organisms also use spicules for internal support
What are sea cucumbers?
These organisms are most closely related to scorpion and arachnids
What are the Horseshoe crabs?
This term refers to the symmetry of of echinoderms
What is pentamerous?
This is a brief description of Aristotle's lantern
What is 'the feeding structure of many echinoderms; made up of five bony plates with sharp teeth on each end, all connected to a series of strong, intricate muscles; can be used for chewing, scraping, and even boring holes into other organisms?'
Cephalopods use this structure to propel themselves forward and change direction of movement
What is their siphon (funnel would also be accepted)?
This group of echinoderms have a decentralized nervous system, use tube feet for locomotion, and have a complete digestive tract
What are sea stars/starfish?
All arthropods must go through this process in order to grow larger and develop
What is molting?
This is how the Cooper's Nutmeg Snail feeds
What is 'by using a spine at the end of their proboscis to cut open a nearby stingray and drink its blood?'
This marine invertebrates are found on the ocean floor and have 8 overlapping, dorsal plates that function similarly to armor
What are Chitons?
This is how sea cucumbers defend themselves
What is 'by eviscerating themselves and either vomiting or excreting their organs out of their body to surround and possibly kill unwanted guests?'
This organ helps keep the skin of Echinoderms clean
What is the pedicellariae?
Briefly explain why the reproduction patterns/reproductive status of crustaceans is very important for us to understand
What is 'because they are such an economically important group of animals - seafood industry is a multibillion dollar industry - so we need to understand and be very conscious of their reproductive status?'
These crustaceans have remained unchanged for millions of years and predate dinosaurs by several hundred millions of years
What are horseshoe crabs?
These are three general reasons why cephalopods are the most unique molluscs?
What is 1) largest, 2) adapted for movement, 3) most intelligent, 4) have internal skeleton, 5) can remember and predict based on past experiences, 6) are all predatory, 7) fastest, 8) can solve problems, 8) can use tools, and 9) some can edit their own genes?
These echinoderms are their internal organs restricted to their circular, disk-like body totally separate from their long, flexible, spiny arms
What are brittle stars?
Briefly explain the biomedical engineering importance of the girdle tissue of chitons
What is 'this material allows for 1) great flexibility and 2) great protection/shock absorption that allows for movement across hard or irregular surfaces; looking to synthetically create and use this material for body armor?'
List four characteristics of sea spiders
What are 1) roughly 1500 known species, 2) some can grow to a larger size than a dinner plate, 3) all breathe through pores in their legs, 4) poorly studied in terms of reproduction and behavior, and 5) males carry developing young?