WorksheetsPHYLUM CHORDATA
Total questions: 15
Worksheet time: 9mins
This structure is present in all embryos and may or may not be present in adults.
Notochord
Vertebrates
Metamorphosis
Gnatho
Which organisms are in the class Agnatha?
Lampreys
frogs
snakes
birds
What is a characteristic of the class Agnatha?
do not have jaws
go through metamorphosis
can fly
have feathers
Which organisms are classified in the class Amphibia?
Birds
Fish
Snakes
Frogs
Which of the following is a characteristic of the class Amphibia?
do not have jaws
goes through metamorphosis
can fly
have feathers
Which of the following is a characteristic of the class Chondrichthyes?
They have a cartilage skeleton (not bone)
they have a bone skeleton
they do not have jaws
they go through metamorphosis
Which of the following is a characteristic of the class Mammalia?
They have mammary glands to produce milk.
They go through metamorphosis.
They do not have jaws.
They can fly.
Which class of Chordates includes ectothermic tetrapods with dry scaly skin?
Amphibia
Reptilia
Aves
Mammalia
What are the 3 classes of fish?
Class Agnatha
Class Amphibia
Class Chondrichthyes
Class Reptilia
Class Osteichthyes
Check ALL that apply to all Vertebrates.
have an endoskeleton
have bilateral symmetry
have scales in the skin
have gills
have en exoskeleton
How many chambers does a fish heart have?
1
2
3
4
Pharyngeal slits, endoskeleton derived from mesoderm and ventral heart are characteristics for
Annelida
Chordata
Cnidaria
Nematoda
Usual mode of reproduction: Sexual
Type of fertilization: External
Embryology: Blastopore contributes to the formation of anus; cleavage is radial
Symmetry: Immature form is bilateral; mature form is five-part radial
Body cavity: Lined with tissue derived from mesoderm
Segmentation: No evidence
Skeleton: Spiny exoskeleton secreted by the dermis and covered with a thin epidermis
Habitat: marine
Into what phylum should this organism be placed?
Chordata
Echinodermata
Mollusca
Nematoda
The ciliated, free-swimming larva of the cnidarian is called a _______________.
blastula
planula
meusa
polyp
Which phylum is comprised of acoelomate, bilaterally symmetrical and tripoblastic organisms?
nematoda
chordata
porifera
platyhelminthes
