AKA: Gastropods, Bivalves, & Cephalopods
Phylum ______
AKA: Gastropods, Bivalves, & Cephalopods
GENERAL CHARACTERISTICS
The ______or larval stage of development looks nothing like the adult.
Two body regions:
- ______contains the head (______& ______) and the ______(locomotion).
- ______contains the vital organs covered by the ______which secretes calcium carbonate to make the ______
______symmetry with ______.
They use ______to exchange gas.______are used to remove metabolic waste. This phylum contain organisms with both types of circulatory systems ______and ______
Class ______or stomach foot
Examples: ______
Use a ______to scrape or capture food.______circulatory system with a ______chambered heart. Found in ______, ______, & ______terrestrial habitats.
The land type uses a ______to respire and the water type use ______.
Class______or two valves
Examples: ______
______circulatory system. Shells are made of ______with ______of ______on the inside.
They are ______feeders that are usually ______. They can move using their ______. They have both ______and ______siphons to move water into and out of the body for ______with ______and for feeding. The majority of them are ______sexes with ______fertilization.
Class ______or head foot
Examples: ______
This group has a ______circulatory system with ______fertilization. They have the largest ______of invertebrates and a well developed set of ______. They use ______, ______and ______for protection and defense. Squid have ______arms and ______tentacles for catching and holding prey while Octopi have only ______arms the nautilus can have up to ______arms. The ______is the only species that retained its ______shell, all of the other groups of cephalopds have internal shells called ______which resembles a piece of plastic and aids in body support.
PHYLUM ______
AKA: Segmented worms
GENERAL CHARACTERISTICS
______symmetry with ______. Live in the ______, ______, and ______. Most contain external bristles that run along the side of the body called ______.Most of this group has a ______organ system.
Class ______or few bristles
Most familiar of this group is the ______. These live in ______or ______and ingest the ______as they burrow through it. Two sets of muscles that are used for movement: the ______(for making skinny or fat) and the ______(for making short or long). Typically there are ______segments on the body with the largest most visible being the ______which aids in reproduction of the hermaphroditic worms. They have ______fertilization and with fertilize each other. They respire through their ______so must stay ______and use ______to excrete waste.
Food pathway for the earthworms: Food starts in the ______and passes into the ______and then down the ______to the ______where it is stored until the ______is ready to grind it up for the ______where the nutrients are absorbed before the waste is expelled out of the ______. The droppings of earthworms are called ______.
Circulatory Pathway for the earthworm: Blood travels to the ______or tail by the ______blood vessel and returns to the ______or head by the ______blood vessel to the ______which act like a heart.
Class ______or many bristles
Which includes free-living ______like the ______.
They use their ______to respire, swim, and crawl and have ______and specialized ______.
Class ______
Most familiar to this group is the ______which lives as a ______in moist ______areas. They have powerful ______on both ends of their body but do not have any ______. They use an ______to prevent the host from feeling their bite and can swallow up to ______their weight in ______.