Topic 13- The evolution of animals II Flashcards
What is an invertebrates/ What is a defining characteristic? Give an example
Invertebrates = absence of backbone (spine)
Ex- earth worm
What is an porifera (sponges)/ What is a defining characteristic?
Porifera (sponges) = diploblastic animal with radical symmetry
What is an Ctenophora/ What is a defining characteristic?
Ctenophora = diploblastic animal with radical symmetry
What is an Cnidaria/ What is a defining characteristic? Give an example
Cnidaria = diploblastic animal with radical symmetry
Ex-jellyfish
Is radical symmetry for diploblastic or triploblastic animals? What are the layers
-Diploblastic
-Endoderm and ectoderm
Is bilateral symmetry for diploblastic or triploblastic animals? What are the layers?
-Triploblastic animals
-Endoderm, mesoderm, & ectoderm
What is an Ecdysozoa/ What is a defining characteristic? Give an example
Protostome animal that produce an exoskeleton (cuticle) periodically molted
Ex- Insects: fly
What is an Lophotrochozoa/ What is a defining characteristic? Give an example
Protosomes animal that either possess a lophophore or a trochophore
Ex- earth worm
What is an Echinodermata/ What is a defining characteristic? Give an example
*2 characteristics
-Deuterostome animal with bilateral symmetry
-Water circulatory system (ambulatory system)
Ex-star fish
What possess a notocord, nerve cord, and pharyngeal slits?
Chordata
What is a vertebrate?
Possess a skeletal system formed by a veterbrale column (the spinal cord = backbone)
What is a cyclostomes? Give an example
Veterbrates without jaws (they have a circular mouth)
Ex- lampreys and hagfish
What is a gnathostomes?
Vertebrates with jaw
What is a Chondrichthyes? Give 1-2 examples
-Skeleton made of cartilage
-tooth-like scales
Ex- Sharks, rays
What are the two types of Osteichtyes?
Ray-finned bony fish (bones are at the base of the fins)
lobe-finned bony fish (bones are at the tip of the fins)
What are tetrapods? What are the 3 types?
-“four limbs” with digits
-Mammals, reptiles, amphibians
What is an example of an amphibian?
A frog, salamandar
What is an example of a reptile?
Aligator, snake, turtle, iguana
Birds are BLANK and BLANK dinosaurs
reptiles and bipedal
What are Amniotes? and what animal groups do they protect?
Air insulation and ventilation of the membrane protecting the deveoppling embryo
-Including reptiles (birds) and mammals
