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What is the common Ancestor of the horse and zebra and ass?
The common ancestor is the Hyracotherium
What do the similarities between the skeletal structures of these four species most likely indicate about their evolutionary history?
These four species are distantly related and share a common ancestor.
Are colin firth and Julian firth related?
No family tie. colin firth has a brother Jonathan firth (who is an actor)
What is one ancestor relative of the Canada Lynx and what is one homologous characteristic that establishes how they are related?
Scott Foresman is one ancestor relative of the Canada Lyn.
What do all animals in chordata have in common?
There are three subphylums in Chordata. Two of them are invertebrates - Urochordata (tunicates) and Cephalachordata (lancelets), while the third is Vertebrata (vertebrates). This phylum 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. In the tunicates, the adult form no longer has the notochord. Another characteristic they share is that, at some stage during their lives, they have pharyngeal grooves and pouches that develop into other essential parts of their anatomy (many textbooks still state that all vertebrate embryos have gill slits, but there has been a great deal of development in the science of embryology to refute this claim). Chordates all have a post-anal tail, which means an extension of the notochord and nerve chord behind the anus, although this feature is no longer present in the mature forms of some creatures such as frogs, and some mammals such as people. Chordates also have a closed circulatory system, although not all Chordates have an actual heart like the vertebrate Chordates do.
Are Chordates and echinoderms are both protostomes?
Neither are protostomes. Chordates, Hemichordates, and Echinoderms are all deuterostomes (in that the blastopore forms the anus first). In protostomes, the blastopore forms the mouth first.
Why are Echinoderms considered to be closely relate to chordates?
both have a nerve cord
What are echinoderms considered to be closely related to chordates?
both have deuterostome development...(:
how do lower chordates survive on their adaptive features?
echinoderms, cnidaria and other forms
Does echinoderms have a close evolutionary relationship with chordates?
Yes they do. Echinoderms, which include starfish, and chordates, which include humans are closely related in an evolutionary sense due to the way their embryos are formed in the early stages of development. Once past that point, the very obvious differences form.
How does paedogenisis relate to the evolution of vertebral chordates?
Evolution of chordates is based on pedogenetic theory i.e. primitive chordate ancestor evolved from echinoderm by pedogenesis .
What phylum your invertebrate specimen belong to?
Echinoderms are marine animals that are invertebrates, while Chordates are animals with backbones. Hope this helps!
Write some characters common to both Chordates and non Chordates?
Notochord
Is radial symmetry common in echinoderms?
Yes, all echinoderms have radial symmetry.
What is the common Ancestor of the horse and zebra and ass?
The common ancestor is the Hyracotherium
What is three things all chordates have in common besides a back bone what do all chordates have in common beside a backbone?
All Chordates have(in part of their life or another) A Notochord A hollow dorsal nerve cord A post-anal tail
What is a chordate and what do all chordates have in common?
Chordates are that group of animals having some form of a spinal column (which include the vertebrates).
