Study Guide for VT 1176,"Life on Earth: The Segmented Invertebrates"
The focus on this video is on Phylum Arthropoda, with some references to Phylum Annelida.
- A presumptive evolutionary selective pressure for a segmented worm body was to:
- A region of ocean with deoxygenated water would have what advantages for fossilization?
- Very common fossils in the Cambrian period (500 million years ago), with their exoskeletons of calcium carbonate and chitin, were the:
- Even the earliest trilobites had what kind of eyes? _______________________________
- A wide variety of shapes and sizes indicates that trilobites inhabited _________________________
- Trilobites died out about ______________________ million years ago.
- A living relative of the trilobite is the _________________________________________________
- In the United States, horseshoe crabs can be found ________________________________________
- Many crustaceans live ______________________________________________, where they are a food staple for many fish and whales.
- Given that they have a hard exoskeleton, how do crustaceans and other arthropods grow?
- The giant spider crabs off of Japan demonstrate that crustaceans have (circle one)
ball and socket joints joints hinged in different planes
- The many appendages off of a segmented body, can serve many differing functions, including:
- All crustaceans live only in the ocean. true false
- Millipedes are _______________________________, so that their sexual encounters do not run the risk of being consumed by a mate.
- In contrast, scorpions are _____________________, and so involve ritualized __________________ in their mating.
|main page| |background| |03028: Physiology| |03048: Anatomy|
|03050: Invertebrate Zoology| |03051: Vertebrate Zoology| |03074: Economic Botany|
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This page updated on October 25, 1999