Animal Kingdom Flashcards
Vertebrates
animals that have a backbone
Invertebrates
animals that neither possess nor develop a vertebral column
Consumer
studies interactions among consumers, businesses, and government in order to advance the well-being of consumers, families, and communities.
Ganglion
lumps that most commonly develop in the wrist
Gut
the passageway of the digestive system that leads from the mouth to the anus.
Coelom
the body cavity in metazoans, located between the intestinal canal and the body wall.
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 equality or equivalence between parts or aspects of something; lack of symmetry.
Sponges
a basal animal clade as a sister of the Diploblasts.
Cnidarians
an aquatic invertebrate animal of the phylum Cnidaria, which comprises the coelenterates.
Flatworms
a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.
Roundworms
constitute the phylum Nematoda, with plant-parasitic nematodes also known as eelworms
Mollusks
the second-largest phylum of invertebrate animals after the Arthropoda
Open circulatory system
systems where blood, rather than being sealed tight in arteries and veins, suffuses the body
Closed circulatory system
blood is contained inside blood vessels, circulating unidirectionally
Annelid worms
as the ringed worms or segmented worms, are a large phylum
Exoskeleton
the rigid or articulated envelope that supports and protects the soft tissues of certain animals
Compound eye
a visual organ found in arthropods such as insects and crustaceans.
Antenna
the interface between radio waves propagating through space
Metamorphosis
the process of transformation from an immature form to an adult form in two or more distinct stages.
Endoskeleton
an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
Water vascular system
a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.
