What is the amphioxus - Study guides, Class notes & Summaries

What 5 features do all chordates have for at least some period of their life cycles? correct answers notochord, hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail Name the 3 subphyla of the phylum chordata. correct answers cephalochordata, urochordata, vertebrata About how many species of cephalochordata are there? correct answers 25 Where do cephalochordata inhabit? correct answers shallow tropical and temperate oceans Are the cephalochordata a small or l...

What 5 features do all chordates have for at least some period of their life cycles? correct answers notochord, hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail Name the 3 subphyla of the phylum chordata. correct answers cephalochordata, urochordata, vertebrata About how many species of cephalochordata are there? correct answers 25 Where do cephalochordata inhabit? correct answers shallow tropical and temperate oceans Are the cephalochordata a small or l...

OSMT Exam Questions with verified Solutions 100% Solved 2024 Why doesn't phylogenetic systematics have a fixed number of hierarchical categories like Linnaean systematics? - answerEach branching point is a hierarchical level in the nested structure of phylogenetic systematics. The number of branching points—and therefore the number of possible hierarchical levels—varies substantially from one lineage to another. What aspect of evolution does phylogenetic systematics represent more cle...

OSMT Exam Questions with verified Solutions 100% Solved 2024 Why doesn't phylogenetic systematics have a fixed number of hierarchical categories like Linnaean systematics? - answerEach branching point is a hierarchical level in the nested structure of phylogenetic systematics. The number of branching points—and therefore the number of possible hierarchical levels—varies substantially from one lineage to another. What aspect of evolution does phylogenetic systematics represent more c...

OSMT Exam Questions with verified Solutions 100% Solved 2024 Why doesn't phylogenetic systematics have a fixed number of hierarchical categories like Linnaean systematics? - answerEach branching point is a hierarchical level in the nested structure of phylogenetic systematics. The number of branching points—and therefore the number of possible hierarchical levels—varies substantially from one lineage to another. What aspect of evolution does phylogenetic systematics represent more cle...

4 Characteristics of Phylum Chordata correct answers Notochord, Dorsal tubular nerve cord, Pharyngeal gill slits, Postanal tail Notochord correct answers gives phylum chordata its name, is present in all embryos, and may be present or absent/reduced in adults. Dorsal tubular nerve cord correct answers A dorsal, hollow, ectodermal nerve cord typically forms by an infolding of the ectoderm tissue, which then pinches off and becomes surrounded by mesoderm Pharyngeal gill slits correct answ...

comparative morphology looking at anatomical characters (for example eyes, lungs, bones, etc) and seeing what is shared and what differs in what ways can anatomical characters differ? 1) function 2) form 3) genetic aspects (evolutionary history) homologous structures structures that share a common ancestry (ex: forelimbs in tetrapods) analogous structures structures that share a similar (and precise) function (ex: bat wings + bird wings, woodpecker tongue + aye aye f...

4 Characteristics of Phylum Chordata correct answers Notochord, Dorsal tubular nerve cord, Pharyngeal gill slits, Postanal tail Notochord correct answers gives phylum chordata its name, is present in all embryos, and may be present or absent/reduced in adults. Dorsal tubular nerve cord correct answers A dorsal, hollow, ectodermal nerve cord typically forms by an infolding of the ectoderm tissue, which then pinches off and becomes surrounded by mesoderm Pharyngeal gill slits correct answ...

USC BISC 120 Final Exam Trond Sigurdsen What is the largest group of deuterostomes? - Answer- chordates Chordates are mostly vertebraes or invertebrates? Primitive chordates have this structure - Answer- They are mostly vertebrates but there are some primitive forms with a notochord What are the three types of chordates? - Answer- vertebrates, lancelets, tunicates What is the amphioxus? - Answer- a lancelet These two are the simplest chordates - Answer- lancelets and tunicates ...