Answers 2024 Updates
Phylum Cnidaria ANS tissue level, diploblastic no mesoderm, radial,
Phylum Platyhelminthes ANS organ level, triploblastic, acoelomate, bilateral, cephalization, blind sac
Phylum Nematoda ANS pseudocoelomates, tube within tube
Phylum Rotifera (rotifers) ANS -pseudocoelomates
-heterotroph
Phylum Mollusca ANS eucoelomate, protostome, muscular foot, open circulatory
Phylum annelida ANS metamerism, hemoglobin
Phylum Arthropoda ANS striated muscles, exoskeleton with jointed appendages, ecoelomates
Phylum Echinodermata ANS -eucoelomate
-deuterostomes
-bilateral
-
Phylum Cordata ANS notocord, post anal cord, gill slits, dorsal hollow cord
Subphylum Verbrata ANS humans
Superclass Gnathostomata ANS jawed vertebrates
Class Chondrichthyes ANS sharks, skates, rays
, Class Osteichthyes ANS bony fish
Aceolomate/ advantages/ disadvantages ANS no body cavity,
-body can be flat to hide
-limited movement/less intricate body
Pseudocoelomate/ advantages/ disadvantages ANS -An animal whose body cavity is not completely lined by
mesoderm
-Freedom of movement/ organ development and specialization
- no specialized control, not compartmentalized
Eucoelomate/ advantages/ disadvantages ANS -true body cavity
- complex digestive system, compartmentalized, space for organs
- difficult for regeneration
What phylum is only aceolomate? ANS Platyhelminthes
Is nematoda pseudo or euceolomate? ANS pseudo
heterosporous life cycle ANS Produces two different types of spores
Megaspores (female)
Microspores (male)
Seed Tracheophytes
homosporous life cycle ANS -Produces only one type of spore
-Bryophytes and Seedless Tracheophytes
Haploid plant body (Gametophyte) produces gametes by _______? ANS mitosis