Question

Match the structure with the correct type. A structure type may be used more than once. 35.bat wing and mouse arm_____A. homologous structure 36.reptile foot and bird foot ____B. analogous structure 37.dolphin fin and fish tail ____C. vestigial structure 38.eves on a blind cave fish ____ 39.snake tongue and dog nose ____

Answer 1

Answer:

35. A. homologous structure

36. B. analogous structure

37. B. analogous structure

38. C. vestigial structure

39. B. analogous structure

Explanation:

A homologous structure is a similar structure/trait found in different species because they diverged (evolved) from a common ancestor, i.e., these species share a common ancestor that had the homologous structure/trait. A homologous structure may have the same or different functions in the descendants. Conversely, an analogous structure is a similar structure/trait that evolved independently (i.e., by convergent evolution) in different species to have the same function, thereby these species don't share a common ancestor with the trait. Finally, a vestigial structure is a rudimentary biological structure found in an organism that has lost its original/ancestral function (e.g., the appendix in humans or the hindlimbs of the snake). Vestigial structures provide strong evidence for evolution by use/disuse of body parts.

Answer 2

Homologous and Analogous structures differentiate in origin and function. Vestigial structures have lost their function. A) Homologous, B) analogous, C) analogous, D) vestigial, E) analogous.

What is an homologous structure?

Homologous characters are the structures of different organisms that,

• are composed of the same basic elements.

• share the same position in the body and the same relationship with adjacent structures.

• share the same embryological development.

These structures might express some variations between the organisms that might be related to their function and to the environment. Their function is not necessarily the same in all the organisms involved.

These homologous characters are present in organisms related that share a common ancestor.

What is an analogous structure?

Analogous structures are those body parts of different organisms that accomplish the same function, but they are originated from different areas. These structures do not share the same origin.

What is a vestigial structure?

Vestigial structures are those body parts, genetically determined, that have been retained during the evolution of the taxonomic group but have lost or reduced their original function.

Such vestigial structures were plenty functional in the ancestors of new species, but now are typically degenerate, stunted, or rudimentary, and tend to be much more variable than homologous non-vestigial parts.

 

According to these definitions, we can answer the questions.

• bat wing and mouse arm_homologous structure_
• reptile foot and bird foot _analogous structure
• dolphin fin and fish tail _analogous structure_
• eyes on a blind cave fish are _vestigial structure_
• snake tongue and dog nose _analogous structure_

You will learn more about homologous, analogous and vestigial structures at

https://brainly.com/question/1017285

https://brainly.com/question/882540

https://brainly.com/question/2882009

https://brainly.com/question/478049

https://brainly.com/question/1891149