kingdom of animalia Flashcards
KINGDOM ANIMALIA
cell structure, mode of nutrition and reproduction
cell structure: multicellular, eukaryotic
mode of nutrition: Hetertophic
mode or reproduction: mainly sexual
What is radial symmetry
symmetry around a central axis
What is bilateral symmetry
symmetry around the midline
What are bilaterally symmetrical animals divided into?
protostomes and devterostomes
Define protostomes
An animal with bilateral symmetry and grows the mouth before the anus
Define deuterostomes
an animal with bilateral symmetry that grows the anus before the mouth
what deuterostome phylum do humans belong in?
chordata, where animals are vertebrates (with a backbone)
what are animals developed from?
flagellated protists
what are the interior cells of animals for
DIGESTION
Animals are distinguished from other organisms by the number of
germ layers
what are germ layers
layers of cells in a embryo that turn into specialized tissues
define ectoderm
outer layer becomes skin and nervous system
define endoderm
inner layer becomes the pancreas and bladder
define mesoderm
middle layer becomes reproductive and circulatory
what is the body structure of phylum Porifera? give example
-two cell layers with gelatinous material
-flagellated cells
sponges
what is the digestion of phylum porifera
-filter food from water
-single opening which food enters and waste exits
what is the body structure of phylum Cnidaria?
-two cell layers with radial symmetry
-contain a nematocyst with stinging cells and toxins
What is the digestion of phylum cnidaria?
-single opening where food enters and exists
-extracellular digestion, secrete enzyme to digest outside the body before ingestion
Phylum Platyhelminthes body structure and example?
flat body and distinct head
example : tapeworm
Phylum Rotifera body structure :
Less than 2 mm long and use Cilia to direct food into their mouth
Phylum Annelida body structure and example
-Body dived into ringed segments
example: earth worms
phylum mollusca body structure, and example
soft body organisms, example snail
phylum, Arthropoda, body structure, and example
Exoskeleton made of Chitin
- example ants
Phylum Echinodermata (deuterostomes) body structure and example
invertebrates and have tube feet
example : starfish
