Invertebrate Animal Flashcards
(23 cards)
Vertebrates
Vertebrates comprise all animal taxa within the subphylum Vertebrata, including all mammals, birds, reptiles, amphibians, and fish. Vertebrates represent the overwhelming majority of the phylum Chordata, with currently about 69,963 species described.
Invertebrates
Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column, derived from the notochord. This is a grouping including all animals apart from the chordate subphylum Vertebrata
Consumer
A consumer is a person or a group who intends to order, or uses purchased goods, products, or services primarily for personal, social, family, household and similar needs, who is not directly related to entrepreneurial or business activities.
Ganglion
Ganglion cysts are lumps that most commonly develop in the wrist. They’re typically round or oval and are filled with a jellylike fluid. Ganglion cysts are lumps that most often appear along the tendons or joints of wrists or hands. They also can occur in ankles and feet.
gut
The gastrointestinal tract is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus, stomach, and intestines
coelom
the body cavity in metazoans, located between the intestinal canal and the body wall.
. Bilateral Symmetry
A condition in which the right and left sides of an item (e.g., a shape or an animal) are mirror images of one another. For example, since the right side of the human body generally mirrors the left side, humans are bilaterally symmetric.
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
Sponges, the members of the phylum Porifera, are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells.
Cnidarians
Cnidaria is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey.
Flatworms
Roundworms
The nematodes or roundworms constitute the phylum Nematoda, with plant-parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments
Mollusks
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks. Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species
Open circulatory system
an open circulatory system, the blood is not enclosed in blood vessels but is pumped into an open cavity called a hemocoel and is called hemolymph because the blood mixes with the interstitial fluid.
Closed circulatory system
In a closed circulatory system, the blood stays within blood vessels. In this way, blood is kept separate from body tissues. This system has a heart that pumps blood through a continuous circulation pattern. As such, the blood tends to be pumped at a higher pressure.
Annelid worms
known as the segmented worms, are a large phylum, with over 22,000 extant species including ragworms
. Exoskeleton
exoskeleton, rigid or articulated envelope that supports and protects the soft tissues of certain animals. The term includes the calcareous housings of sessile invertebrates such as clams but is most commonly applied to the chitinous integument of arthropods, such as insects, spiders, and crustaceans.
Compound eye
A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distinguish brightness and color.
Antenna
Antennas are much more than simple devices connected to every radio. They’re the transducers that convert the voltage from a transmitter into a radio signal. And they pick radio signals out of the air and convert them into a voltage for recovery in a receiver.
Metamorphosis
Metamorphosis is a novella written by Franz Kafka which was first published in 1915. One of Kafka’s best-known works, Metamorphosis tells the story of salesman Gregor Samsa, who wakes one morning to find himself inexplicably transformed into a huge insect and subsequently struggles to adjust to this new condition
Endoskeleton
an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
. Water vascular system
The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.
