Unit 3: Vertebrate Consumers Flashcards
What characteristic defines Cephalochordata?
The notochord extends into the head.
which of the following statements about characteristics of Chordates is true?
The dorsal hollow nerve cord is part of the chordate central nervous system
Which feature of Chordates do adult tunicates posses
pharyngeal slits
According to genomics, which group of invertebrates is most closely related to vertebrates?
cephalochordates
Which of the following is not a method by which birds reduce their body mass for easier flight?
They utilize a cross-current gas exchange system
What is the main bird characteristic that scientists look for in fossils when assessing the evolution of birds?
Flight feather
Which of the following details a key adaptation of reptiles?
Their scaly, permeable skin gave reptiles the ability to move onto land
Which of the following is a characteristic of Caecilians
No limbs
frogs belong to which order?
Anura
Which of the following is a characteristic of amphibians?
an extra ear bone
Which of the following amphibians uses lateral undulation to move?
Salamanders
Which characteristic defines both lampreys and hagfish?
The lack of jaw
Members of Chondrichthyes differ from members of Osteichthyes by having a _________.
Cartilaginous skeleton
Pharyngeal slits
Filter-feeding organs found in invertebrate chordates (Lancelets and tunicates) and hemichordates living in the aquatic environment
Notochord
A flexible rod-like structure that forms the main support of the body in the lowest chordates; a primitive spine.
