Protein deficiency
A dietary deficiency common to the poorer
people of the world
that causes malfunction and defor-
mation of the body and eventually death.
Phyllospadix
Surf grass
Panope
Geoduck clam.
Physiology
The funcyions (Mainly chemical) of a living organism.
Protozoa
One-celled animals
Phytoplankton
Plants which driht in the water.
Pelagic
Referring to any orfanism that spends its life in the open sea
away from the bottom, such as the
tuna.
Pelagic
Qny organism that lives in the open sea with no lasting
contact with the bottom.
Plankton
Drefting organisms.
Phaeophyta
The phylum of the brown alges.
Pseudopodia
An extension of the body of the Rhizopods, often called a
"false foot."
Pore cell
A constrictive cell used to close the opening in the sponge and
regulate water flow.
Polymorphism
Ability for one species to occur in several different shapes or
forms during its life cycle.
Periostracum
A thin, tough outer layer on most bivalvia shells.
Piddocks
A boring clam that causes damage to submerged marine
structures.
Polyplacophora
Class name of the chitons (formerly called amphineura).
Pteropoda
A swimming gasteropod.
Pedicellariae
Small pinchers found on the back of many echinoderms used
to keep the skin clean as well as sometimes to catch food.
Paedogenesis
Aterm used when a larval form reproduces without maturing
into the adult form.
Polychaeta
Order of marine annelid worms that is widespread and very
common.
Pack ice
Sea iceformed into a mass by the crushing together of frozen
sections which have frezen on the sea surface.
Photosynthesis
Formation of carbohydrates through the use of light.
Primary producers
Organisms that use chemical energy or sunlight and the
process of photo-or chemosynthesis to produce organic
material.
Prokaryotic cell
Primitive cell type found in bacteria and the blue-green algae.
these forms of oife are classified as Monera.
Protoplasm
Umbrella term for all living cellular substances.
Phytoplankyon
Those organisms within the plankton that are plankton that are
plants.
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