Which 3 bones in the frog skull carry teeth?
Premaxilla, Maxilla, and Vomer
Is the notochord present in Condrichthyes?
Yes
What is the mud puppy's scientific name?
Necturus maculosus
What type of scales do perch have?
Ctenoid
What do anterior and posterior mean?
Anterior: Directed towards the head
Posterior: Directed towards the tail
What is the function of the hyoid apparatus?
Supports the tongue and larynx
What is the scientific name of Spiny Dogfish
Squalus acanthias
Do salamanders have internal or external fertilization?
Internal
Yellow Perch's scientific name is?
Perca flavescens
Which clade of bony fishes contains most of the diversity of extant bony fish species?
Actinopterygii
What is the scientific name for American Bullfrog?
Lithobates catesbeianus
The _____ is the large single element of the head skeleton that surrounds and provides support for the brain and sense organs
Chondrocranium
Retention of larval or embryonic characteristics past the time of reproductive maturity in an adult salamander is called
Neotany
What is indicated by letter I, and what does it do?
Operculum; protects the gills and aids in breathing
True or False: All lobe-finned fishes exhibit the derived characteristic in which the fin exhibits a single basal element that articulates with the limb girdle.
True
What function does the coronoid process serve?
Controls mouth opening and closing
The olfactory sacs emerge from the ____________ of the dogfish brain.
telecephalon
Where are metatarsals and metacarpals located, respectively?
Tarsals is Hindfeet and Carpals is Forefeet
What letter indicates the Neural Spine?
What three monopyletic clades are withing Lissamphibia?
Anura, Caudata, and Gymnophonia
Name the fused bones of the arm and leg.
Leg: Tibiofibula
Arm: Radioulna
What parts of the brain are the letters indicating?
A: Cerebrum
B: Optic Lobe
C: Cerebellum
D: Medulla
The two major bones in the mandible are ____ and _____
Dentary and Prearticular
What is letter G pointing to?
Gonads
What are 5 synapomorphies of the Chondrichthyes ?
1. unique perichondral and endochondal mineralization: calcification along skeleton
2. Cartilaginous skeleton: endoskeleton made of cartilage
3. Placoid Scales (dermal denticle): reduces drag - tooth-like, homologous w/vertebrate teeth
4. Inner ear that opens externally through envolymphatic pores: between eyes
5. Pelvic claspers in males: used for internal fertilization