yukyuewkklyberwiml;q'235642879gbdhjnmbsbvoyyyyidwpkfgihjurfpoed[] Flashcards
(23 cards)
vertebrates
a backboned animal
invertebrates
a non-backboned animal
consumer
an organism that generally obtains food by feeding on other organisms or organic matter
ganglion
a mass of nerve cells
gut
the digestive tract
coelom
a body cavity that contains the internal organs
bilateral symmetry
the property of being divisible into symmetrical halves on either side of a unique plane
radial symmetry
symmetry around a central axis as in a starfish or a tulip flower
asymmetry
lack of symmetry
sponges
is an animal that grows in one spot like most plants do
cnidarians
an aquatic invertebrate animal of the phylum cnidaria
flatworms
phylum of relatively simple soft-bodied invertebrate animals
roundworms
diverse animal phylum inhabiting a broad range of environments
mollusks
snails, slugs, mussels, and octopuses
open circulatory system
a circulatory system in which the circulatory fluid is not contained entirely within vessels
closed circulatory system
a circulatory system in which the heart circulates blood through a network of blood vessels that form a closed-loop
annelid worms
ringed worms or segmented worms, are a large phylum with over 22000 extant species
exoskeleton
a hard external supporting structure
compound eye
an eye composed of many light detectors
antenna
a feeler that is on the head if an invertebrate such as a crustacean or an insect that senses touch taste or smell
metamorphosis
process of transformation from an immature form to an adult form in two or more distinct stages
endoskeleton
an internal skeleton
water vascular system
a system of canals filled with a watery fluid that circulates throughout the body of an echinoderm
