Flashcards in Lab 8: Invertebrate Anatomy Deck (26):
Which two phyla encompass much of the morphological, ecological, and species diversity within the clade Bilateria.
Mollusca and Arthropoda
Two phyla (Mollusca and Arthropoda) encompass much of the morphological, ecological, and species diversity within the clade __________.
Mouth develops from the blastopore.
Mollusca and Arthropoda are __________ groups.
Mollusca and Arthropoda have very different __________ and __________ systems.
Musculoskeletal and circulatory
The Mollusca belong to the __________.
The Arthropoda belong to the __________.
Mollusca comes from the Latin "molluscus" meaning:
A __________ covers the internal organs of Cephalopods.
The shell has been __________ and __________ in the squid.
The __________ __________ has been modified in cephalopods into the tentacles, parts of the head, and a muscular excurrent siphon.
Arthropoda comes from the Greek arthropod meaning __________ __________.
Arthropods have hard __________.
Today's lab will examine the __________.
Crustaceans are known for their serially __________, __________ appendages that have been extensively modified to perform specialized tasks.
__________ are the only Arthropods with 2 pairs of antennae.
Squid also have a separate __________ __________ which lies directly between the gills.
The __________ and __________ comprise the squid's skeleton.
The __________ is the long, translucent, plastic-like structure that runs the length of the body and supports the mantle and internal organs.
Looks like a long, dark tube that opens near the funnel.
Running parallel to the ink sac is the __________ which ends at the __________.
The large white mass located at the posterior end of the mantle.
The __________ lies anterior to the caecum and contains visible folds; it looks like a piece of chewing gum.
Structures within an organism exhibit __________ __________ if the structures are repeated and have similar developmental organs.