review the definition of the following terms: homologous structure, vestigial organ, analogous structure

classify each of the following examples as homologous structures (hs); vestigial organs (vo); or analogous structures (as).
_____ bird wing and moth wing
_____ human appendix
_____ wisdom tooth
_____ catfish fin and dolphin fin
_____ whales pelvic bone
_____ human arm and bat wing
_____ cat forearm and whale flipper
_____ human body hair

classify each of the following as examples of evidence of evolution as embryology (e); biogeography (b); phylogenetic tree (pt); or dna sequencing (ds)

science uses many fields of study to provide evidence that evolution has and is taking place. what observations can be made from the areas of dna sequencing, homology, embryology, and fossil record. check all of the determinations that these fields support:
_____ organisms share common ancestry
_____ current forms of species descended from ancestral forms
_____ organisms change over time
_____ new species can develop from existing species
_____ some species that lived are now extinct

Question

review the definition of the following terms: homologous structure, vestigial organ, analogous structure

classify each of the following examples as homologous structures (hs); vestigial organs (vo); or analogous structures (as).
_____ bird wing and moth wing
_____ human appendix
_____ wisdom tooth
_____ catfish fin and dolphin fin
_____ whales pelvic bone
_____ human arm and bat wing
_____ cat forearm and whale flipper
_____ human body hair

classify each of the following as examples of evidence of evolution as embryology (e); biogeography (b); phylogenetic tree (pt); or dna sequencing (ds)

science uses many fields of study to provide evidence that evolution has and is taking place. what observations can be made from the areas of dna sequencing, homology, embryology, and fossil record. check all of the determinations that these fields support:
_____ organisms share common ancestry
_____ current forms of species descended from ancestral forms
_____ organisms change over time
_____ new species can develop from existing species
_____ some species that lived are now extinct

Accepted Answer

### Part 1: Classify Structures (Homologous, Vestigial, Analogous)

#### 1. Bird wing and moth wing
- **Explanation**: Analogous structures have similar functions but different evolutionary origins (no common ancestor for the wing structure here).
- **Classification**: AS (Analogous Structures)

#### 2. Human Appendix
- **Explanation**: Vestigial organs are reduced structures with no/little current function (appendix is vestigial in humans).
- **Classification**: VO (Vestigial Organs)

#### 3. Wisdom tooth
- **Explanation**: Wisdom teeth are vestigial (no longer needed for chewing in modern humans).
- **Classification**: VO (Vestigial Organs)

#### 4. Catfish fin and dolphin fin
- **Explanation**: Analogous structures (both aid in swimming, but catfish are fish, dolphins are mammals—different origins).
- **Classification**: AS (Analogous Structures)

#### 5. Whale’s pelvic bone
- **Explanation**: Vestigial organ (whales are aquatic, pelvic bones are reduced with no locomotive function).
- **Classification**: VO (Vestigial Organs)

#### 6. Human arm and bat wing
- **Explanation**: Homologous structures (share a common ancestor, similar bone structure, different functions).
- **Classification**: HS (Homologous Structures)

#### 7. Cat forearm and whale flipper
- **Explanation**: Homologous structures (common ancestor, similar skeletal structure, different functions).
- **Classification**: HS (Homologous Structures)

#### 8. Human body hair
- **Explanation**: Vestigial organ (body hair has lost most of its original function in humans).
- **Classification**: VO (Vestigial Organs)

### Part 2: Classify Evidence of Evolution (Embryology, Biogeography, Phylogenetic Tree, DNA Sequencing)

(Note: Images are referenced, but typical classifications:
- **Phylogenetic Tree (PT)**: Diagram showing evolutionary relationships (matches the first image with branching).
- **DNA Sequencing (DS)**: Image with nucleotide sequences (second image).
- **Embryology (E)**: Image with embryo development (third image).
- **Biogeography (B)**: Image with species distribution (first image if showing geographic spread, but likely PT here).)

### Part 3: Evolutionary Inferences Supported

- **“Organisms share common ancestry”**: Supported (DNA, homology, embryology show shared traits).
- **“Current forms of species descended from ancestral forms”**: Supported (fossil record, phylogenetics confirm descent).
- **“Organisms change over time”**: Supported (all fields show gradual change).
- **“New species can develop from existing species”**: Supported (evolutionary theory, fossil transitions, DNA evidence).
- **“Some species that lived are now extinct”**: Supported (fossil record shows extinct species).

### Final Answers (Structures Section):
1. Bird wing and moth wing: AS
2. Human Appendix: VO
3. Wisdom tooth: VO
4. Catfish fin and dolphin fin: AS
5. Whale’s pelvic bone: VO
6. Human arm and bat wing: HS
7. Cat forearm and whale flipper: HS
8. Human body hair: VO

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QUESTION IMAGE

Question

Explanation:

Part 1: Classify Structures (Homologous, Vestigial, Analogous)

1. Bird wing and moth wing

2. Human Appendix

3. Wisdom tooth

4. Catfish fin and dolphin fin

5. Whale’s pelvic bone

6. Human arm and bat wing

7. Cat forearm and whale flipper

8. Human body hair

Part 2: Classify Evidence of Evolution (Embryology, Biogeography, Phylogenetic Tree, DNA Sequencing)

Part 3: Evolutionary Inferences Supported

Final Answers (Structures Section):

Answer: