amphioxus वाक्य
उदाहरण वाक्य
मोबाइल
- After the founding of the Laboratory of Marine Biology in Qingdao, Tong studied the development of amphioxus during the 1950s and 1960s.
- Because in amphioxus, Nodal signaling pathway is on the left side of the embryo, which is the same situation as vertebrates.
- This would explain the bizarre embryology of Amphioxus, a basal cephalochordate widely held to be the prime example of a chordate bauplan.
- CYP19 is present in an early-diverging chordate, the cephalochordate amphioxus ( the Florida lancelet, " sponges, corals ).
- Amphioxus does not possess bone, making it an invertebrate, but it has common features with vertebrates including a segmented body and a notochord.
- He was the first to discover that the amphioxus was a separate taxa, and not the larvae of a mollusk, as previously thought.
- From his research of amphioxus, the anatomical terms-" Hatschek's pit " and " Hatschek's nephridium " are derived.
- If you look at " simpler " animals, ( for example, worms or the Amphioxus ) you can see how their primitive organs work.
- Tong and his colleagues used Nile Blue stain to color amphioxus embryos and to track the blastomeres in different stages of development up to 32-cell-embryos.
- According to Newman, Balanoglossus thus retains throughout life a larval organisation while Amphioxus and vertebrates have secondarily introduced metamerism by division of posterior coelom into a long scries of segments.
- These genes were first shown to be arranged into a physically-linked chromosomal cluster in amphioxus, an invertebrate with a single member of each of the three gene families.
- In the Amphioxus, for example, there's no complete heart; what they have is a short section of a blood vessel that's slightly more muscular.
- Amphioxus is still living today, despite their simple forms and a lack of organs we deem crucial for our body, such as kidneys, lungs, and the liver.
- The amphioxus hepatic diverticulum has been found to synthesize several substances that are similarly synthesized in the vertebrate liver .-Nunh-huh 01 : 20, 18 December 2008 ( UTC)
- The enterocoelic origin of coelom in Balanoglossus and Amphioxus is also of greater phylogenetic significance than the resemblances in the gill-slits, and so-called notochord and dorsal tubular nerve cord.
- Keratins ( also described as cytokeratins ) are polymers of type I and type II intermediate filaments, which have only been found in the genomes of chordates ( vertebrates, Amphioxus, urochordates ).
- :: If you go to early chordates, you're possibly looking for a little dark spot at the front tip of the nerve cord in amphioxus, the frontal eye of the lancelet.
- Taxonomists place lampreys and hagfish in the subphylum Vertebrata of the phylum Chordata, which also includes the invertebrate subphyla Tunicata ( sea-squirts ) and the fish-like Cephalochordata ( lancelets or Amphioxus ).
- The "'epipharyngeal groove "'is a ciliated groove along the dorsal side of the inside of the pharynx in some plankton-feeding early chordates, such as " Amphioxus ".
- Only a few months before he died Garstang had drafted a communication to " Nature " to put forward his latest suggestion that " Amphioxus " might be regarded as a paedomorphic ammocoete-like larva of a Stensio.
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