Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between the starfish and green snake?
a. sequence the same gene in both species to compare their similarity.
b. dissect specimens of both species to look for homologous structures*****
c. search fossil databases to locate a common ancestor.
d. evaluate cells from both species to determine whether they contain enzymes. ---- (THIS IS ABOUT A STARFISH AND A MEDIUM SIZED GREEN SNAKE)
easy and effective? your are right.
To determine the evolutionary relationship between the starfish and green snake, the most effective and easiest experimental approach would be to dissect specimens of both species to look for homologous structures. This approach is known as comparative anatomy and it involves examining the anatomical features and structures of both organisms to identify similarities and differences.
By dissecting specimens of both the starfish and green snake, scientists can carefully compare their internal and external structures. If any homologous structures are found, which are features that have a common origin in the evolutionary history of the organisms, it would suggest a closer evolutionary relationship between the two species.
For example, if both the starfish and green snake have similar skeletal structures, such as similar arrangements of bones or similar limb structures, it would indicate that they share a common ancestor and have evolved from a common lineage.
Using comparative anatomy to identify homologous structures can provide direct evidence of a shared evolutionary history between the starfish and green snake. This approach is relatively easier compared to other options because it involves physically examining the specimens, which can be done using standard dissection techniques.