Homologous and Analogous Structures

Structures that are inherited from a common ancestor are homologous.

• True
• False

Tags

NGSS.MS-LS4-2

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals
• They live in similar environments
• They have a common ancestor
• All organisms resemble humans

Tags

NGSS.MS-LS4-2

Bird wings and butterfly wings are an example of

• Homologous structure
• Analogous structure
• Mimicry
• Camoflague

Tags

NGSS.MS-LS4-2

Analogous structures show common ancestry.

• True
• False

Tags

NGSS.MS-LS4-2

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

Tags

NGSS.MS-LS4-2

How would you describe this evolution?

• Homologous structure
• Analogous structure
• Structural adaption
• Functional adaption

Tags

NGSS.MS-LS4-2

The structures shown are_________

• homologous
• heterologous
• analogous
• vestigial

Tags

NGSS.MS-LS4-2

Evolution occurs quickly (over short periods of time).

• True
• False

Tags

NGSS.MS-LS4-4

  Notice the similarities of a shark and dolphin.  If these similarities developed by  common life experiences and not by common ancestry, which of the following vocabulary words would best describe them?

• a.  Vestigial Organ
•   b.  Embryological Similarities
• c.  Homologous Structures
• d.  Analogous Structures

Embryos of chickens, fish and humans look very similar. They all have folds known as gill pouches in the neck region. What may this suggest?

• they all formed in the ocean 
• they all evolved from a common ancestor
• they are all going extinct

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3