Taxonomy Flashcards
Chordates Requirements
Notochord-> Spine
Dorsal Nerve Cord -> Spinal Cord
Pharyongeal Slits -> Gills
Muscular Post-anal Tail
Unique Fungi Characteristics
Cells Walls are made of Glucans & Chitins
Archaea Cell Wall
Polysaccharides
Echinoderms?
Invertebrates as starfish, sea urchines and sea cucumbers. These creature lack segmentation(distinguish) seen in annelids, and the adults display radial symmetry.
Convergent Evolution?
Hummingsbirds in North and South America, Sunbirds in Asian and Africa. This is displayed when two distinct species with differing ancestries evolve to yield similar physical features.
**platypus, or beaver.
Thrombus?
Blood clot that forms in a vessel abnormally.
Pluripotent stem cell
Platelets, leukocytes, and erythrocytes.
Erythropoietin?
Hormone secreted primarily from the kidneys and will stimulate RBC formation in bone marrow in response to low oxygen level.
Echindermata ?
Starfish display Radial symmetry
Coelenterates?
Jellyfish, sea anemones, hydra are also radial, having a single opening; Carnivores’ they have tentacles to capture prey by stinging cells(Nematocysts).
Slow block to polyspermy in the sea urchin?
When the cortical granules in the egg fuse with the plasma membrane. The acrosomal is the fast block!
Amphioxus and tunicates(looks like heart)
Are invertebrate that represent (phylum)chordates. They do not lose their notochord
Chondrichthys?
skates and sharks
Aves
Birds
Osteichthys
bony fish