--%>
Assignment Help - homework help

Complete evolutionary branch of the vertebrates

Explain the six criteria employed to build a complete evolutionary branch of the vertebrates?

E

Expert

Verified

Dichotomy in each of six following criteria forms the vertebrate evolutionary branch: deficiency of mandibles separates cyclostomes from others; deficiency of limbs detaches fishes from the remaining; detaches of osseous skeleton detaches chondrichthian (or cartilaginous) fishes from osteichthyes; in the presence of impermeable skin detaches amphibians from the terrestrial vertebrates; in the presence of warm blood (or homeothermic body) separates reptiles from mammals and birds; absence of mammary glands and hair detaches birds from mammals.

Evolutionarily protochordates might be intermediate animals among vertebrates and invertebrates.

   Related Questions in Biology

  • Q : Fragment of nucleic acid having

    When a fragment of nucleic acid has a nucleotide sequence TAC, can anyone assert that it is a codon or an anticodon?

    		•
  • Q : What you need to know about Business

    It summarize six of my favourite references and thoughts from the world of business strategy. It is a selection of strategic thinking that you are likely to come across in company-wide discussions on strategy They are specifically:

    		•
  • Q : Describe Sales Training Sales Training

    Sales Training: It is a very significant component of hiring a new employee. This can take up to ninety days for a new worker to become acclimated to selling your service or product; thus, having effective training implemented near the beginning will

    		•
  • Q : Main species of taenias that cause

    Write down the two main species of taenias that cause human diseases?

    		•
  • Q : Muscle contracion how does calcium ions

    how does calcium ions and ATP contribute in muscle contraction?

    		•
  • Q : Digestion of carbohydrates Explain how

    Explain how pancreatic juice resumes the process of the digestion of carbohydrates? List the enzyme involved during the process?

    		•
  • Q : Explain phrase price rationing means

    Explain phrase "price rationing" means.Price rationing is the procedure by which the market system allocates goods & services to consumers while quantity demanded exceeds quantity supplied.

    		•
  • Q : Lactose tolerant individuals Why can

    Why can individuals from only some human populations tolerate milk as adults? In your own words, explain in detail the genetic changes that allow for milk tolerance in adult humans.)

    		•
  • Q : Functions of progesterone Briefly write

    Briefly write down the functions of progesterone?

    		•
  • Q : How can the morphology of embryo be

    After the neurula phase and from its ventral part to the dorsal how can the morphology of embryo be explained?

    		•