Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
72 Cards in this Set
- Front
- Back
|
Acoelomate |
No body cavity |
|
|
Coelomate |
2 fluid or air filled pockets. Center connects twice to outside |
|
|
Pseudocoelomate |
Outside and center do not touch. Center suspended in air or fluid |
|
|
Blastopore |
Indentation that leads to archenteron through gasteation |
|
|
Archenteron |
Becomes gut. Starts as pouch |
|
|
Body plan |
Set of morphological and developmental traits integrated into a organism |
|
|
Cadherin |
Coded domains of certain proteins |
|
|
Blastula |
Hollow ball stage after cleavage |
|
|
Cleavage |
Mitotic cell divisions of zygote. No cell growth |
|
|
Collar cell |
Ancestral trait if animals |
|
|
Determinate cleavage |
Knows the developmental fate early |
|
|
Ectoderm |
Germ layer surface |
|
|
Endoderm |
Innermost germ layer |
|
|
Mesoderm |
Middle germ layer |
|
|
Gastrulation |
Embryonic tissues develop into adult features |
|
|
Germ layers |
Ectoderm Mesoderm Endoderm |
|
|
Indeterminate cleavage |
Each division can create multiple organisms |
|
|
Larva |
Sexually immature form of an organism |
|
|
Metamorphosis |
From larva to adult |
|
|
Spiral cleavage |
Smaller cells over larger cells grooves |
|
|
Bilateria |
All but cnidarians and porifera |
|
|
Deuterostomia |
Echinoderms and chordata |
|
|
Eumetazoa |
All but porifera |
|
|
Opisthokonta |
Fungi and animals |
|
|
Parazoa |
Porifera |
|
|
Protostomia |
Arthropods Annelida Molluscs Platyhelminthes Nematode |
|
|
Unikont |
Opisthokonts Amoebas |
|
|
Choanoflagelletes |
Collar cells a close imitation. Cadherins have special connecting properties that allow cells to send messages |
|
|
Body plan is comprised of |
Body cavity Symmetry Tissues |
|
|
Derived traits if Animalia |
Multicellular No cell wall Chemoheterotrophic ingestion Specialized cells Diploid (sexual) dominant Short lived gametes |
|
|
Cephalization |
Sense organs. Nerves. Forming of brain in evolution or developmental stage |
|
|
Radial cleavage |
Either parallel or perpendicular |
|
|
Coelom |
Formed from mesoderm. Attaches to either side of walls for organ suspension |
|
|
Tree spot for choanoflagelletes |
Opposite of animals. Unicellurlar |
|
|
Mantle |
Fold of tissue over visceral mass. Secrets shell |
|
|
Lophophore |
Horse shoe cilliated structure around mouth |
|
|
Metanephridium |
Excretion glad in annelids, molluscs, and arthropods |
|
|
Sessile |
Fixed to one place, immobile |
|
|
Trochophore |
Larva with bands of cillia |
|
|
Porifera |
No tissues. Asymmetrical. Has chitin. |
|
|
Cnidarian |
Stinging spicules. Radial symmetry. Chitin. 2 germ layers. Nerve net. Hydrostatic |
|
|
Platymelminthes |
Acoelomate. Flat worms. Bilateral. 3 germ layers. No chitin. Ganglia. Hydrostatic. |
|
|
Annelids |
Segmented. Coelomate. Chitin. Alimentary digestive system. Closed circulation. Hydrostatic |
|
|
Mollusca |
Foot, mantle. Chitin. Brain. Lungs and gills. Exoskeleton |
|
|
Nemotoda |
Hydrostatic. Pseudocoelomate. Chitin. Ganglia. |
|
|
Arthropods |
Brain. Exoskeleton. Jointed appendages. Segmented. Coelomate. |
|
|
Echinodermata |
Nerve cords. Endoskeleton. Water vascular system. Deuterostome. |
|
|
Chordata |
Deuterostome. Endoskeleton. No chitin. Brain. Lungs. |
|
|
Parazoa vs Eumetazoa |
Parazoa no tissues mostly sessile, no symmetry |
|
|
Protostomes vs Deuterostomes |
Protostomes have: Spiral and determinate Mouth first Deuterostomes have: Radial and indeterminate Anusara first |
|
|
Dorsal hollow nerve |
Chordates have hollow nerve tubes |
|
|
Notochord |
Flexible rod located between digestive tube and nerve chord. Provides skeletal support |
|
|
Pharygeal slits/clefts |
Allow water entered through mouth to leave body without entering digestive track. Suspension feeding device |
|
|
Post anal tail |
Tail that is above butthole |
|
|
Vertebrate |
Has backbone |
|
|
Chordates shared derived traits |
Notochord Hollow nerve chord Pharygeal slits |
|
|
Nerves |
Collection of neurons organized into chords |
|
|
Ganglia vs brain |
Brain major processing center. Ganglia collection of neuron bodies |
|
|
Alimentary |
Canal from mouth to anus |
|
|
Gastrovascular |
One opening to gut |
|
|
Gills |
High surface area. H20 flow over them take out o2 |
|
|
Trachea |
Branching tubes deliver gazes directly to celks |
|
|
Lungs |
Have to be kept wet so gases can dissolve. In pocketing. |
|
|
Circulatory system |
Moves substances around body |
|
|
Fluid has |
Hemolymph: interstitial fluid Blood |
|
|
Open system |
Vessels open ended. Pump into body cavities |
|
|
Closed system |
Blood stays enclosed in vessels. Highly branched. Allows for fluid exchange |
|
|
Excretory for aquatic animals |
Diffusion of ammonia |
|
|
For reptiles, birds, insects |
Ammonia to uric acid. Not toxic. Little water. Very energy expensive |
|
|
For mammals, amphibians, sharks |
Ammonia to urea. Midway expensive, less water needed. Less toxic |
|
|
Excretory organs |
Many tubes. High surface area. Submerged in body fluids or around blood vessels |
|
|
Process |
Filtration Reabsorbtion Secretion Excretion |
