Animal Classification
With bilateral symmetry, animals developed a _____________.
well defined head
Which phylum means "jointed foot?"
arthropods
Which phylum means "spiny skin?"
enchinoderm
The subkingdom of animals that lack symmetry and have no true tissues or organs are the ___________.
parazoa
Which of the following is not a characteristic of animals?
multicellular
heterotrophs
autotrophs
no cell walls
Active Movement
autotrophs
Where are most annelids found?
Marine waters
Which grouping would you find unsegmented worms in?
nematoda
What are the 2 groups of fish?
cartilaginous fish/chondrichthyes
bony fish/ osteichthyes
Which phylum means spiny skin, has a water vascular system and is radially symmetrical?
enchinoderms
What are the features of chordates?
1.Notochord
2.Nerve cord
3.Pharyngeal pouches
4.Postanal tail
5. bilaterally symmetrical
What is the purpose of a swim bladder in fish?
to help with buoyancy.
What is an arthropod's exoskeleton made of?
chitin
Name the types of reptiles.
1.Turtles and tortoises
2.Crocodiles and alligators
3.Lizards and snakes
4.Tuataras
The majority of fish today are in the group ________________.
bony fish/osteichthyes
What phylum has the following characteristics?
radial symmetry, exist in polyp or medusae form, exhibit extracellular digestion, carnivorous
Cnidaria
Earthworms and leeches are examples of phylum _______________.
segmented worms; phylum annelids
Where must amphibians reproduce? Why?
water; eggs will dry out on land.
In what ways are reptiles better suited to life on land than amphibians?
–Amniotic egg-
–Dry skin-
–Thoracic breathing-
Which phylum has the greatest number of species?
arthropoda
Which phylum has the following characteristics?
jointed appendages,
3 body segments
exoskeleton on chitin
arthropods
Name the 2 types of symmetry. Which was the first to develop?
radial, bilateral;
radial
What does the term hermaphroditic mean? Which animal grouping is hermaphroditic?
both sexes present; flatworms,
What phylum has the following characteristics?
1.Gills-
2.Vertebral column-
3.Single-loop blood circulation-
4.Nutritional deficiencies-
Fish
Name and describe the 3 classifications of mollusks.
1.Gastropods (snails and slugs) Use the muscular foot to crawl and their mantle often secretes a single, hard protective cell
2.Bivalves (clams, oysters, scallops, and mussels)- Secrete a two-part shell with a hinge and filter-feed by drawing water into their shell
3.Cephalopods (octopuses, squids, and nautiluses)- Have a large brain and modified mantle cavity that permits jet propulsion
Name the 3 classifications of mammals.
placentals
marsupials
monotremes