SCAPULA=A HUMERUS=B RADIUS=C ULNA=D CARPELS (WRIST)=E METACARPELS (HAND)=F PHALANGES (FINGERS)=G Function: flight Adapted Structure: thin & elongated bone structureĤ Mole Forelimb Function: digging Adapted Structure: SCAPULA=A HUMERUS=B RADIUS=C ULNA=D CARPELS (WRIST)=E METACARPELS (HAND)=F PHALANGES (FINGERS)=G DIRECTIONS: Complete the THREE columns on the worksheet table. HOMOLOGOUS STRUCTURES - traits inherited by two different organisms from a common ancestor that have the same structures, but have adapted different functions. Some traits shared by two living things were inherited from their ancestor (homologous), and some similarities evolved in other ways (analogous). The similarity between the sisters is inherited, but the similarity between the Elvis impersonators is not. On the other hand, two people attending an Elvis impersonators’ convention may look alike because they are both wearing rhinestone studded suits and long sideburns. Two sisters, for example, might look alike because they both inherited brown eyes and black hair from their father. In everyday life, people look like one another for different reasons.
Presentation on theme: "Homologous Structures"- Presentation transcript:
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