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118 Cards in this Set
- Front
- Back
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Heterotrophs |
An organism that acquires energy and nutrients by eating other organisms or their remains.
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Motle |
Capable of self-propelled movement.
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Sessile |
Unable to move from one place to another.
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Gametes |
A haploid cell, egg or sperm! These fuse bring sexual reproduction to form a diploid zygote.
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Zygotes |
A fertilized egg.
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Larval forms |
A sexually immature stage in the life cycle of many animals that is morphologically distinct from the adult.
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polymorphic development |
The production during development of one or more morphologically distinct forms.
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Tissues |
A group of cells and intercellular substances with the same structure that function as a unit to carry out one or more specialized tasks.
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Germ layers |
The layers of cells produced during the early development of the embryo of most animals.
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Endoderm |
The innermost of the three primary germ layers of an embryo, which develops into the gastrointestinal tract and the respiratory organs! |
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Ectoderm |
The outermost of the three primary germ layers of an embryo, which develops into epidermis and nervous tissue.
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Mesoderm |
The middle germ layer! Muscular, skeletal, vascular, and connective tissues develop from it.
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Diploblastic |
An animal body plan in which adult structures arise from only two cell layers, the ectoderm and the endoderm.
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Triploblastic |
An animal body plan in which adult structures arise from three primary germ layers! Endoderm, mesoderm, and ectoderm.
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Symmetrical |
Exact correspondence of form and constituent configuration on opposite sides of a dividing line or plane.
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Asymmetrical |
Characterized by a lack of proportion in the spatial arrangement or placement of parts.
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Radially symetrical |
A body plan of organisms in which structures are arranged regularly around a central axis, like spokes radiating out from the centre of a wheel.
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Bilateral symmetry |
The body plan of animals in which the body can be divided into mirror image right/left halves!
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Anterior |
The head end of an animal!
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Posterior |
The booty end of an animal!
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Dorsal |
Also the booty end of an animal, the backside.
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Ventral |
The tum-tum of an animal!
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Cephalization |
The concentration of sense organs, nervous control, etc., at the anterior end of the body, forming a head and brain, both during evolution and in the course of an embryo's development. |
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Acoelomate |
A body plan of bilaterally symmetrical animals that lack a body cavity between the gut and body wall! |
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Pseudocoelomate |
A body plan of bilaterally symmetrical animals with a body cavity that lacks a complete lining derived from mesoderm.
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Pseudocoelom |
A fluid or organ filled body cavity between the gut and muscles of the body wall.
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Coelomate |
A body plan of bilaterally symmetrical animals that have a coelom
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Coelom |
A fluid filled body cavity in bilaterally symmetrical animals that is completely lined with derivatives of mesoderm.
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Peritoneum |
The thin tissue derived from mesoderm that lines the abdominal wall and covers most of the organs in the abdomen.
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Mesenteries |
Sheets of loose connective tissue, covered on both surfaces with epithelial cells, which suspend the abdominal organs in the coelom and provide lubricated, smooth surfaces that prevent chain or abrasion between adjacent structures as the body moves.
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Hemocoel |
A cavity in the body of some coelomic invertebrates filled with blood. These displace the coelom, which persists as a small chamber surrounding the gonads or heart.
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Hydrostatic skeleton |
A structure consisting of muscles and fluid that provide support for the animal or part of the animal; no rigid support like bones are involved. |
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Protostomes |
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Deuterostomes |
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Cleavage |
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Spiral cleavage |
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Radial cleavage |
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Determinate cleavage |
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Indeterminate cleavage |
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Archenteron |
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Schizocoelom |
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Enterocoelom |
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Segmentation |
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Lophotrochozoa |
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Ecdysozoa |
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Ecdysis |
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Spongocoel |
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Osculum |
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pinacoderm |
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Pinacocytes |
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Choanocytes |
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Flagellum |
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Microvilli |
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Mesohyl |
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Amoeboid |
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Archaeocytes |
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Pores |
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Suspension feeders |
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Spicules |
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Spongin |
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Totipotent |
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Monoecious |
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Dispersal |
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Metamorphosis |
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Gemmules |
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Gastrovacular cavity |
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Gastrodermis |
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Epidermis |
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Mesoglea |
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Polyps |
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Medusae |
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Extracellular digestion |
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Intracellular digestion |
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Cnideocytes |
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Nematocyst |
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Nerve net |
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Lophophore |
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Flame cell |
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Ganglion |
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Ocelli |
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Pharynx |
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Syncytial |
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Scolex |
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Proglottids |
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Corona |
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Mastax |
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Complete digestive system |
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Parthenogenesis |
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Circulatory vessels |
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Rhynchocoel |
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Visceral mass |
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Head-foot |
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Radula |
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Mantle |
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Mantle cavity |
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Gills |
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Open circulatory system |
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Hemolymph |
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Sinuses |
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Trochophore |
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Veliger |
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Torsion |
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Operculum |
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Closed circulatory system |
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Septa |
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Metanephridia |
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Parapodia |
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Exoskeleton |
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Compound eyes |
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Book lungs |
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Spinnerets |
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Mandibles |
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Maxillae |
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Antennal glands |
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Traecheal system |
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Malpighian tubules |
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incomplete metamorphosis |
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Complete metamorphosis |
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