Chapter 33-35 Flashcards
Some animals are sessile, but a major chairstic for most animals the ability to?
Move rapidly
4 common animal characteristics?
Sexual reproduction
Multicellular
Heterotrophic
Locomotion
What is Monophyletic?
Animals descending from a common ancestor
Terms that describe animals that obtain energy from ingesting other organisms?
Omnivore
Detritvore
Carnivore
Heterotroph
What animal can not build its own organic molecules from inorganic chemicals?
Sponges
Are all animals multicellular?
Yes
When a animal is cut on a longitudinal plane any any angel through the central axis results in two identical halves is?
Radial symmetry
Pie
A body cavity that develops in an animal embryo between the mesoderm and endoderm?
Psuedocoelom
What is a fluid filled body cavity?
Coelom
Importance of noncoelmate invertebrates?
Possessed basic animal body plan from all other animals evolved from
Three characteristics of sponges?
They do not have true tissue
They have free swimming larvae
They have choanocytes
Eumetazoans have what in contrast to parazoa?
Have tissues and some kind of symmetry.
What are the small pores in the body of the sponge?
What do they do?
Ostia
They allow water carrying oxygen and food to enter the body
What protons one Clade undergo spiral cleavalage as embryos?
Spirilians
The two Clade of spiralians are?
Platyzoans and lophotrochozoans
Members of which phyla are the most prominent of platyzoans?
Flatworms
Planarian, tapeworms, and parasitic flukes are in which phylum?
Platyhelminthes
Phyla most successful containing more than 1 million species?
Anthropoda
What phylum are rotifers in?
Rotifera
What secretes the shell on a mollusk?
Mantle
What is the you he like organ on mollusk?
Radula
What is the visceral mass of a mollusk?
Where the digestive, exeretory, and reproductive organs are found.
In aquatic mollusk, what is used for gas exchange?
Gills
Ribbon worms are found in which phyla?
Nemertea
What are nemerteans charterized by?
Cephalization
What is a major characteristic of Polychaeta?
Parapodia
What is the you he like organ on mollusk?
Radula
What is the visceral mass of a mollusk?
Where the digestive, exeretory, and reproductive organs are found.
In aquatic mollusk, what is used for gas exchange?
Gills
Ribbon worms are found in which phyla?
Nemertea
What are nemerteans charterized by?
Cephalization
What is a major characteristic of Polychaeta?
Parapodia
Bony fish have what two chacteristics?
Bony skeleton
Scale covered skin
Largest class of Echinodermata?
Brittle stars ophiuroidea
When and how is notochord present?
Present during some of developmental stage in all chordates
The most primitive chordate?
Tunicates
What is not found in tunicates or lancelets but in vertebrates?
A distinct head
Vertebrae
Neural crest cells
These animals evolved in the oceans during the Cambrian period?
Vertabrates
What is not found in vertebrates?
Notochord
Features of jawed fishes
Single loop circulation Internal gills Paired appendages Nutritional deficiencies Vertebral column
Skeleton of Chondrichthyes (sharks) are made up of?
Cartilage
The class actinopterygii contains?
Ray finned fish
The class sarcopterygii contains?
Lobe finned fished
Modern amphibians are?
Salamanders
Frogs
Caecilians
Amphibians evolved from?
Love finned fish
Modern orders of amphibians
Anura frogs
Caudata
Apoda
Reptiles that are invaded in protective shell?
Turtles / Chelonia
Key characteristics of birds?
Feathers
Light skeleton
Thin and hollow bones
Fused or keeled breast bone
How are birds and crocodiles similar?
Four chamber heart
Care for young
They build nest
Shared features of dinosaurs and archaeopteryx?
Toothed bill
Long tail with many Vertebrae
Largest of the bird order?
Passeriformes
Features unique to mammals among vertebrates
Placenta
Mammary glands
Hair
Who are part of the subclass theria?
Placental mammals
Marsupials
Monotremes are what?
Mammals that lay eggs
The placenta is formed from?
Chorion
Allantois
40 million years ago, primates split into two groups.
Prosimians
Anthropoids
What are anthropoid primates?
Money’s, humans and apes
Hominoids include the apes, what do they consist of?
Gibbons, orangutan, gorilla, chimpanzee