Animalia Flashcards
ANIMALIA
What is the largest phylum of animalia?,
Arthropoda
What is the biggest class of arthropoda?
Insects
What is the largest order?
Colrptera beetles
What is the biggest family?
Weevil
What makes something an animal?
They are heterotrophic by injestion, reproduce with gametic meiosis, there is a locomotory structure present, and thry hsvr multicellular variety with no cell walls.
What are the 4 evolutionary trends in animals?
Planes of symmetry, levels of organization, embryological development, and body cavity.
What are the three planes of symmetry of animals and an example?
Assymetric - sponges
Radial - jellyfish
Bilateral symmetry - Goats
What are the levels of organization?
Cellular –> tissue –> organs and organ systems
What is an example of an organism on the cellular level?
Sponges
What is an example of an organism on the tussue level?
Jellyfish and sea anemone
What is an example of an organism that has the organ/organ system level?
Mollusks, humans, and athropods
What is a body cavity called?
Coelom
What is it called when there is no fluid filled body cavity?
Acoelomate
What is it called when there is a false fluid filled cavity?
Pseudocoelomate
What is it called when there is a completelt mesoderm lined fluid cavity?
Coelomate
Describe acoelomates
They are small and flat in order to nourish the cells. Ex) flatworm
Describe pseudocoelomates
They have space but it doesn’t line the organs.
Describe coelomates
They have mesoderm lining organs. Ex) Earthworms
What are the metazoa phylum?
Porifera, ctenophora, cnidaria, acoela, deuterostomia, lophotrochozoa, and ecdysozoa.
What are the Eumetazoa?
Everything but porifera
What are the Bilateria?
Deuterostomia, lophotrochozoa, and ecdysozoa
