This document summarizes information about bivalves, including: - Their method of movement by drifting with currents and lack of legs or tails - Their open circulatory system and obtaining of nutrients from lower organisms - Their sexual reproduction and separate sexes that come together periodically - Their shell structure that remains after placing in stimuli while internal organs dissolve - Their gills beside the heart inside their protective shell - Their role as primary consumers in the food chain due to their acidic environment in oceans - Their cold-blooded temperature regulation and hard shell structure with mantle tissue muscles

1. B IVALVIA
N e w s l e t t e r
Praecardiodia Praecardiaida Hippuritoida
Solemyodia Pterioida Lyrodesmatidae
Arcoida Trigonioida Myoida
Cyrtodontodia Unionoida Redoniidae
Mytiloida Modiomorpha Verneroida
Osterodia Cycloconchidae Phoadomyoida
Mollusks
They way they move, Reproduct, and How they get there
Nutritutions
Move by letting the current drift them around at the bottom of the sea, because they
don’t have any legs or tails to move around with. For its internal transport the circulatory
system it uses is an open. It gets its nutririon from animal in the lower food chain for example
it eats fungi, little organsims, and algie from the bottom of the body of water it lives in. As for
the reproduction the sexes usually are separate from each other but they are sexual, so they
have to come together at some point.
http://www.seasky.org/
Stimuli, adaption, and respiration reeflife/sea2f.html
When you put them in stimuli the inside of the organism dissolves but the outer shell
of the creature stays the way it was before you put it in the stimuli. As the years went by they
adapted by growing strong adductor muscles to keep predators away, because if they got to
close then they would get bit by the mollusks. The
resperation of the organism is that they have gills
right beside their heart inside the shell that
surronds.
http://www.seasky.org/reeflife/sea2f.html

2. BI VA L V IA
Regulation, structure, and place in food
chain
Its acid base value is acidic because it lives in the ocean and
most of the ocean is made out of salt or acidic water. Its
temputure system would be a cold blooded because it is a
marine based animal. Its structure of the animal is it is
surronded in a hard shell connected with a strong mantle tissue
muscles, consisting of a heart, kidney, mouth, and an anus. The
place in the food chain that it belongs in is the primary
consumer.
Background of group, other organisms,
Common chiton http://www.seasky.org/
oddball organisms
The group consists of the organism having shells, they can
all be found in the ocean or any big body of water that can
habitize them. Even though they all have a different kind of
shell they have muscles that hold the shell in olace to protect the
heart. Some other species in the group that people would
reconize would be the mussels, oyster, and scallops. The odd
balls would be any of them with shells because they belong to a
larger group called molluscs, which consists of squids,
octopuses, and snails.
Symmetry, extinct or endangered
animals, importance to our lives and
additional facts
The symmetry of the organism is horiznotal because the way their bodies are
shaped, which are side ways or horizontal. Sixendangered members of the group are the
Alabama Heelslitter, lampmussel, Moccaninshell, Pearl shell, Altamaha Arcmussel, and
Spinymussel. Those are all clams but there are other species that are endangered in the
group. They are important to our lives becouse they are a source of food for us, and to
other animals that we eat. Some other facts about the bivalves is that they have six
subclasses, and that all the bivalves are filter feeders.
Yellow Nudibranch
http://www.seasky.org/reeflife/
sea2f.html