--%>
Assignment Help - homework help

Evolutionary analogy or homology

If the limbs which are modified into the wings of bats and the wings of birds are specifying the evolutionary analogy or homology? What can you say about the whale fins as compared to the fish fins?

E

Expert

Verified

Wings of the bat and bird perform same function and the same origin so they are said to be homologous and analogous organs. Fins of whale are the modification of posterior limbs whereas fish fins having the same function do not come from the modified limbs; so they are analogous but nothomologous structures. Evolutionary homology implies common ancestry whereas biological analogy relates to concept of the evolutionary convergence, appearance of the similar features in evolutionarily distant species which explore same type of environment.

   Related Questions in Biology

  • Q : Distinguish gram negative and gram

    Briefly describe distinguish between gram negative and gram positive bacteria?

    		•
  • Q : What is the chromosome area What is the

    What is the chromosome area where the centromere is situated is termed as? How are chromosomes categorized in relation to the place of their centromere?

    		•
  • Q : Expectation - Perception Factor

    This affects what a person perceives. Expectations are related with the state of anticipation of particular behavior from a person. In the organizational setting, expectations affect people's perception. Thus, a technical manager may expect ignorance about the technic

    		•
  • Q : Some applications of immuno

    Give some applications of immuno electrophoresis.

    		•
  • Q : Stage of cardiac cycle Specify the

    Specify the stage of cardiac cycle during which the ventricles are generally filled?

    		•
  • Q : Phylum of animal kingdom-exoskeleton

    Which other phylum of animal kingdom present species with exoskeleton?

    		•
  • Q : Heart chamber into which the blood

    Name the first human heart chamber into which the blood enters? Where does the blood go subsequent to passing that chamber? Give the name of valve which separates the compartments? Why is that valve essential?

    		•
  • Q : External wrapping of cells Do membranes

    Do membranes form just the external wrapping of cells?

    		•
  • Q : Endocrine glands regulating the sexual

    Specify the endocrine glands which regulate the sexual activity within males? Explain, how does this regulation work and which hormones are involved?

    		•
  • Q : Written Communication - Organization

    This is often resorted to by the management for messages that are lengthy and have to be made permanent. It is also undertaken when oral communication cannot reach each and every person concerned, either due t a large number of communications or due to long geographical distances between the send

    		•