Anatomy
The term for animals with two-sided symmetry.
What are Bilaterians?
Cnidaria class that includes box jellies with a medusa-dominated life cycle
What is Cubozoan?
Animals in the Annelid phylum that contain a sucker at either end of their body with a protein that prevents blood clotting, occur in damp places (mostly freshwater), and attach to vertebrate
What are leeches?
The class in the phylum Arthropoda that contain an exoskeleton, compound eyes, 2 pairs of antennae, 3 pairs of legs, 1 or 2 pairs of wings, and 2 distinct body regions
Class of Mollusks that includes squids, octopuses, nautiluses, and cuttle fish
What are Cephalopods?
The outermost germ layer of bilaterian organisms?
What is the ectoderm?
The type of cell that forms a collar around a sponge's flagella and allows them to engulf bacteria and food particles
What are choanocytes?
Phylum that include animals that are non-segmented worms that are usually free-living decomposers with a complete digestive tract, excretory and respiratory organs but some can be parasites of vertebrates
What are roundworms?
The class in the phylum Arthropoda that are all marine and contain 2 pairs of antennae, 2 distinct body regions, and microscopic larvae that molt several times until adulthood
What are crustaceans?
Class that contains mussels, clams, oysters, and scallops
What are bivalves?
What are antennae?
Digestive compartment in sponges/cnidaria
A young, sexually immature animal with a body form that differs from that of an adult
What are larvae?
What are gastropods?
Cluster of nerve cell bodies
What are Ganglia
What are gills?
Sponges are also called this because they are found at the base of the phylogenetic tree
Body cavity lined with tissue from mesoderm that contains most organs
What is a coelom
Class of arthropods that contains scorpions, spiders, ticks, and mites
What are arachnids
Live in the tropics,brightly colored, flattened bodies
What are flatworms?
The term for animals that have both male and female reproductive organs
What are hermaphrodites?
Saclike organ that allows terrestrial animals to breathe by facilitating the exchanges of gases with the air (gastropods have these)
What are lungs?
Development process in which the body gets remodeled as larvae develop into adults
What is metamorphosis?
an evolutionary process whereby many nerve cells and sensory structures become concentrated at the front of the body
What is cephalization?