Two species might have similar skeletal structures that have different functions. What do these types of structures suggest abou
t the relationship between the two species? A. common sructures with different functions suggest that the species do not share a common ancestorcommon
B. sructures with different functions suggest that the species share a common ancestor that also have a similar
C. structurecommon sructures with different functions suggest that one of the species never learned how to use the structure properly
D. common sructures with different functions suggest that the species live in the same habitat
b. Common structures with different functions suggest that the species share a common ancestor that also had a similar structure.
Explanation:
The presence of organs with the same basic structures in the organisms of different species reflects their homology. It represents the fact these species shared a common ancestor that also had a similar structure. These homologous organs with identical basic structural plans have been used by the members of different species to perform different functions. For example, the bones of the forearms of humans and flippers of whales are the same. Humans use forearms mainly in holding objects while flippers assist whales in swimming.
Water flowing over Earth's surface or underground causes erosion and deposition. Water flowing over a steeper slope moves faster and causes more erosion. Erosion and deposition by slow-flowing rivers create broad floodplains and meanders. Deposition by streams and rivers may form alluvial fans and deltas.
<em>when two reproductive cells join together they simply cross over their chromatids exchanging characteristics so new individual has the characters of both mother and father...</em>
