Animal kingdom Flashcards
an animal of a large group distinguished by the possession of a backbone or spinal column
Vertebrates
an animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate, etc. The invertebrates constitute an artificial division of the animal kingdom, comprising 95 percent of animal species and about 30 different phyla
Invertebrates
a person who purchases goods and services for personal use
Consumer
a structure containing a number of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber
Ganglion
is what you have to make Ur food digest.
Gut
the body cavity in metazoans, located between the intestinal canal and the body wall
Coelom
the property of being divisible into symmetrical halves on either side of a unique plane
Bilateral Symmetry
symmetry around a central axis, as in a starfish or a tulip flower
Radial Symmetry
lack of equality or equivalence between parts or aspects of something; lack of symmetry.
Asymmetry
are things that live in the water and feed off of small animals or paristies
Sponges
an aquatic invertebrate animal of the phylum Cnidarian, which comprises the coelenterates
Cnidarians
are worms that eat off of Ur entestines
Flatworms
a nematode, especially a parasitic one found in the intestines of mammals
Roundworms
an invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses. They have a soft, unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell
Mollusks
pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells
Open circulatory system
Vertebrates, and a few invertebrates, have a closed circulatory system
Closed circulatory system
A large phylum that comprises the segmented worms, which include earthworms, lugworms, ragworms, and leeches. The two largest groups of trochozoans are the Mollusca and the Annelida (segmented worms)
Annelid worms
each of the parts into which something is or may be divided
Segment
a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection
Exoskeleton
an eye consisting of an array of numerous small visual units, as found in insects and crustaceans
Compound eye
either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods
Antenna
the process of transformation from an immature form to an adult form in two or more distinct stages
Metamorphosis
a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection
Exoskeleton
a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels
Water vascular system
