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;
33 Cards in this Set
- Front
- Back
|
Blastula |
Early developmental stage of animal, following the morula stage and consisting of a single, spherical layer of cell enclosing a hollow, central cavity |
|
|
Gastulation |
3 term layers formed ( endoderm, mesoderm, ectoderm) Axis formation is realized |
|
|
Gastrula |
3 layered embryo |
|
|
Ectoderm |
Epidermis of skin, hair, lining of mouth and noise, glands of skin, nervous system |
|
|
Mesoderm |
Dermis of skin, muscle, skeleton, circulatory system, gonads, kidneys, outer layer of digestive and respirator Tracts |
|
|
Endoderm |
Lining of digestive and layer of respiration tracts, liver, pancreas |
|
|
Diploblastic |
The simplest level of tissue organization (2 layers) |
|
|
Triploblastic |
The complexiest level of tissue organization (3 layer) |
|
|
Coelomate |
The next evolutionary advancement after 3 germ layers of tissues (ectoderm, endoderm, mesoderm) |
|
|
Pseudocoelomate |
Body cavity partially lined by mesoderm |
|
|
Acoelomate |
An animal that lacks a coelom, or body cavity |
|
|
Metamorphosis |
The biological process by which an animal physically develops or change after birth of hatching |
|
|
Radial symmetry |
Symmetry around central axis Sessile animals sea anemone, jellyfish, starfish Echinoderm |
|
|
Bilateral symmetry |
Symmetry central axis Most advance Allos for cephalization: concentrates a majority of sensory appartus at the head Improved senses: quicker response to environment stimuli |
|
|
Asymmetry |
No particular Normal for essentially symmetric animal to show some measure of symmetry Heart, brain, dominant hand all asymetrical |
|
|
Invertebrate |
An animal without a backbone |
|
|
Cell division |
Division of a parent cell into daughter cells |
|
|
Vertebrate |
Animal with backbone |
|
|
Chordate |
A chordate is an animal belonging to the phylum Chordate They possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post- anal tail, for at least some period of their life cycle |
|
|
Cephalization |
Concentration of sense organs |
|
|
Notochord |
Main axial skeletal element of the early embryos in the chordates phylum. Origin is mesodermal and is locate between the spinal cord and gut |
|
|
Ectotherm |
An animal that relies on interaction with the environment to help it control body temperature |
|
|
Endothermic |
An animal whose body control and regulates its temperature by controlling the internal heat it produce |
|
|
Amniote |
Tetrapods that form egg inside a membrane |
|
|
Amniotic egg |
Encase the embryo in a secure self contained aquatic environment |
|
|
Cyclostome |
Any organism with a round mouth Hagfish and lamprey |
|
|
Gnathostomes |
Jawed fish |
|
|
Tetrapods |
Any vertebrate having for limbs or, as in the snack and whale, having had four limbed ancestor |
|
|
Hominin |
Any taxon that place within the taxonomic tribe hominini |
|
|
Paleoanthropology |
The study of fossil record of ancestral human and their primate kin Multidisciplinary pursuit seeking to reconstruct every possible bit of information concerning dating, anatomy, behavior, and ecology of our ancestor and their primate progenitor |
|
|
Bipedalism |
Walking on 2 legs |
|
|
Indeterminate |
Result in cells that are capable of becoming any cell in the organism |
|
|
Anthropoid |
Are human-like primate. They are subdivide into new world monkey, old world monkey and homininoid |
