Contrast homologous and analogous traits, giving examples
What will be an ideal response?
In both cases you are looking at situations where organisms have similar traits. The difference lies in whether or not the similarity results from common descent (homologous) or from common adaptive pressure (analogous). If the trait is homologous, two organisms will share it with their last common ancestor. If it is analogous, they will have evolved it independently after each group split from their last common ancestor. Students can use examples from the text or from other sources.
You might also like to view...
Which of the following is true of viruses in the extracellular phase?
A. They possess many different enzymes and they can reproduce independently of living cells but only at a slow rate. B. They possess many different enzymes. C. They can reproduce independently of living cells but only at a slow rate. D. They behave as a macromolecular complex and are no more alive than are ribosomes.
The likely number of and locations of transmembrane segments of integral membrane proteins is inferred by
A) X-ray crystallography. B) SDS-PAGE. C) western blot. D) hydropathic analysis. E) affinity labeling.
What gives structure to a sponge?
a. Asconoids b. Spicules c. Pinacocytes d. Choanocytes
Cartilage is heavier and not as pliable as bone.
a. true b. false