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Fish and vertebrates.
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When did the phylum platyhelminthes appear on earth?
The phylum Platyhelminthes is believed to have appeared on Earth during the Ediacaran period, around 550 million years ago. They are one of the earliest known groups of multicellular organisms.
Why are dugongs Phylum Cordata?
Dugongs are Phylum Chordata because they possess a notochord at some point in their development, which is a defining characteristic of the phylum. This notochord provides structural support for the body and is present in all chordates at some stage of their life cycle.
Why is bat kept under phylum chordata?
Bats are classified under the phylum Chordata because they possess a notochord during their development. The presence of a notochord is a defining characteristic of the phylum Chordata, which includes all animals with a dorsal nerve cord at some stage in their life cycle.
Do all rodents belong to the phylum chordata?
Yes, all rodents belong to the phylum Chordata. The phylum Chordata includes all animals with a notochord at some stage of their development, which is a defining feature of this phylum. Rodents, like all mammals, have a notochord during their embryonic development, placing them in the Chordata phylum.
What are the animals included in the phylum chelicerata?
The subphylum Chelicerata constitutes one of the major subdivisions of the phylum Arthropoda, and includes horseshoe crabs, scorpions, spiders, mites, harvestmen, ticks, and Solifugae. The chelicerata originated as marine animals, possibly in the Cambrian period, but the first confirmed chelicerate fossils, eurypterids, date from 445 million years ago in the Late Ordovician period. The surviving marine species include the four species of xiphosurans (horseshoe crabs), and possibly the 1,300 species of pycnogonids (sea spiders), if the latter are chelicerates. On the other hand, there are over 77,000 well-identified species of air-breathing chelicerates, and there may be about 500,000 unidentified species.
When did the phylum platyhelminthes appear on earth?
The phylum Platyhelminthes is believed to have appeared on Earth during the Ediacaran period, around 550 million years ago. They are one of the earliest known groups of multicellular organisms.
What scientific phylum is the platypus in?
Like all mammals, the platypus is in the phylum Chordata. All animals which have a spine, or backbone, are classified in the phylum Chordata. There are three subphylums in Chordata: Urochordata (tunicates), Cephalachordata (lancelets), and Vertebrata (vertebrates). The platypus is a vertebrate. This phylum also includes all animals which have a hollow nerve cord and a notochord at some stage during their development. In the case of vertebrates, the notochord is present in the embryo, and develops into the vertebral body.
Why are dugongs Phylum Cordata?
Dugongs are Phylum Chordata because they possess a notochord at some point in their development, which is a defining characteristic of the phylum. This notochord provides structural support for the body and is present in all chordates at some stage of their life cycle.
Why is bat kept under phylum chordata?
Bats are classified under the phylum Chordata because they possess a notochord during their development. The presence of a notochord is a defining characteristic of the phylum Chordata, which includes all animals with a dorsal nerve cord at some stage in their life cycle.
Do all rodents belong to the phylum chordata?
Yes, all rodents belong to the phylum Chordata. The phylum Chordata includes all animals with a notochord at some stage of their development, which is a defining feature of this phylum. Rodents, like all mammals, have a notochord during their embryonic development, placing them in the Chordata phylum.
What are the animals included in the phylum chelicerata?
The subphylum Chelicerata constitutes one of the major subdivisions of the phylum Arthropoda, and includes horseshoe crabs, scorpions, spiders, mites, harvestmen, ticks, and Solifugae. The chelicerata originated as marine animals, possibly in the Cambrian period, but the first confirmed chelicerate fossils, eurypterids, date from 445 million years ago in the Late Ordovician period. The surviving marine species include the four species of xiphosurans (horseshoe crabs), and possibly the 1,300 species of pycnogonids (sea spiders), if the latter are chelicerates. On the other hand, there are over 77,000 well-identified species of air-breathing chelicerates, and there may be about 500,000 unidentified species.
Which phylum shows the presence of sponge in fibres in its organisms?
Some members of Phylum Porifera show presence of spongin fibers . These fibers are present only in some fresh water sponges which are used as bath sponges .
What are the characteristics of sycon?
it is present in phylum poriferaThey are vas like marine animals they lack mouth digestive cavity etc.
What are the features of sycon?
it is present in phylum poriferaThey are vas like marine animals they lack mouth digestive cavity etc.
What phylum is an echinoderm in?
Echinoderms are the phylum. The phylum is Echinodermata Echinoderms are the phylum. The phylum is Echinodermata Echinoderms are the phylum. The phylum is Echinodermata
Which protozoan has cilia that cover their bodies?
Paramecium have cilia that cover their bodies.They belong to phylum Ciliophora of Protozoa in which group ciliate is present.
What are 10 characteristics of sycon?
it is present in phylum poriferaThey are vas like marine animals they lack mouth digestive cavity etc.
