Unit 8 Target 1: Classification And Cladograms
Questions and Answers
- 1.
Cytochrome C is a protein used in the electron transport chain. This table shows short sections of Cytochrome C’s amino acid sequences (using single letter abbreviations) for 5 different organisms.Use this data to determine which organism most likely shares the most recent common ancestor with humans.
- A.
Organism 1
- B.
Organism 2
- C.
Organism 3
- D.
Organism 4
Correct Answer
A. Organism 1 -
- 2.
These animals are all placed in the vertebrate class Amphibia and the order Anura.- wood frog, Rana sylvatica- bullfrog, Rana catesbeiana- western toad, Bufo boreas- spadefoot toad, Scaphiopus hammondiWhat is the most likely conclusion about the evolutionary relationship between or among these organisms?
- A.
The wood frog and bullfrog are better jumpers than the western toad and the spadefoot toad.
- B.
The wood frog and bullfrog share a more recent common ancestor than do the western toad and the spadefoot toad.
- C.
The western toad and the spadefoot toad share a more recent common ancestor than do the wood frog and the bullfrog.
- D.
The western toad and the spadefoot toad both evolved in western North America, while the wood frog and the bullfrog evolved in the tropics.
Correct Answer
B. The wood frog and bullfrog share a more recent common ancestor than do the western toad and the spadefoot toad.Explanation
The most likely conclusion about the evolutionary relationship between these organisms is that the wood frog and bullfrog share a more recent common ancestor than the western toad and the spadefoot toad. This can be inferred from the fact that they are all placed in the same class and order, indicating a closer evolutionary relationship between the wood frog and bullfrog.Rate this question:
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- 3.
The following cladogram illustrates the proposed evolutionary relationships of several extant species (A-E).According to the cladogram, which of the following species is the most recent common ancestor to Species A and Species E?
- A.
Species J
- B.
Species H
- C.
Species G
- D.
Species F
Correct Answer
D. Species FExplanation
According to the cladogram, Species F is the most recent common ancestor to Species A and Species E. This is because Species F is the closest shared ancestor that branches off before the split between Species A and Species E. The cladogram shows that Species F is connected to Species A and Species E through separate branches, indicating that it is the common ancestor to both species.Rate this question:
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- 4.
An animal has these characteristics:- Many more than 8 jointed legs on a segmented body- 2 pairs of legs attached to each body segment- Lacks biting jaws Use the key below to determine what animal this is.
- A.
Dragonfly
- B.
Millipede
- C.
Sea star
- D.
Slug
Correct Answer
B. MillipedeExplanation
The correct answer is Millipede because it matches all the given characteristics. Millipedes have many more than 8 jointed legs on a segmented body, with 2 pairs of legs attached to each body segment. They also lack biting jaws. Dragonflies have 6 legs, sea stars have multiple arms instead of legs, and slugs have a soft body without segmented legs.Rate this question:
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- 5.
In what kingdom would scientists classify a multicellular, nonmotile, autotrophic organism?
- A.
Animalia
- B.
Plantae
- C.
Fungi
- D.
Protista
Correct Answer
B. PlantaeExplanation
A multicellular, nonmotile, autotrophic organism would be classified in the kingdom Plantae. This is because the characteristics mentioned are commonly associated with plants. Plants are multicellular organisms that cannot move on their own and are capable of producing their own food through the process of photosynthesis. Therefore, based on these characteristics, it can be concluded that the organism in question belongs to the kingdom Plantae.Rate this question:
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- 6.
Scientists discover a new invertebrate in the rainforests of Argentina. This small creature has:- exoskeleton- 2 body segments- 8 legs- 8 eyes- chelicerae (pair of appendages near the mouth)- jointed appendagesTo what known animal would this new invertebrate be most closely related?
- A.
Mosquito (Insecta)
- B.
Lobster (Crustacean)
- C.
Millipede (Myriapoda)
- D.
Scorpion (Arachnida)
Correct Answer
D. Scorpion (Arachnida)Explanation
Based on the given characteristics of the new invertebrate, it can be determined that it belongs to the arachnid group. Arachnids are characterized by having an exoskeleton, two body segments, eight legs, and jointed appendages. Additionally, the presence of chelicerae and multiple eyes further supports the classification of this new invertebrate as a scorpion, which is a specific type of arachnid. Therefore, the correct answer is Scorpion (Arachnida).Rate this question:
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- 7.
Based on their taxonomic classification, which 2 organisms share the most recent common ancestor?
- A.
Squid and octopu (same class)
- B.
Lobster and eel (same kingdom)
- C.
Chimpanzee and gorilla (same family)
- D.
Iguana and mouse (same phylum)
Correct Answer
C. Chimpanzee and gorilla (same family)Explanation
Chimpanzee and gorilla share the most recent common ancestor because they belong to the same family. Taxonomic classification is based on evolutionary relationships, and organisms that share the same family are more closely related than those in different families.Rate this question:
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- 8.
The organisms of what kingdom possess these traits?- Eukaryotic cells- Photosynthetic- Cellulose cell walls
- A.
Eubacteria
- B.
Fungi
- C.
Plantae
- D.
Monera
Correct Answer
C. PlantaeExplanation
The organisms that possess these traits are from the kingdom Plantae. This is because they have eukaryotic cells, which means their cells have a nucleus and other membrane-bound organelles. They are also photosynthetic, meaning they can use sunlight to produce their own food through the process of photosynthesis. Additionally, they have cellulose cell walls, which provide structural support to the cells.Rate this question:
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- 9.
Lions and tigers both belong to genus Panthera. Cheetahs belong to the genus Achinonyx. Scientists group theses 3 types of cats together at the next taxonomic level. What is the most specific taxonomic level that lions, cheetahs, and tigers share?
- A.
Class
- B.
Family
- C.
Kingdom
- D.
Order
Correct Answer
B. FamilyExplanation
Lions, cheetahs, and tigers share the most specific taxonomic level of Family. This is because they all belong to different genera (Panthera for lions and tigers, Achinonyx for cheetahs), but they are all classified under the same family, Felidae.Rate this question:
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- 10.
What level of biological taxa includes Chordata, Molluska, Echinodermata, Arthropoda, and Cnidaria?
- A.
Family
- B.
Genus
- C.
Kingdom
- D.
Phylum
Correct Answer
D. PhylumExplanation
The level of biological taxa that includes Chordata, Molluska, Echinodermata, Arthropoda, and Cnidaria is Phylum. Phylum is a taxonomic rank below the kingdom and above the class level. It represents a group of organisms that share certain fundamental characteristics and are classified together based on those characteristics. In this case, Chordata, Molluska, Echinodermata, Arthropoda, and Cnidaria all belong to the same phylum because they share certain structural and developmental characteristics.Rate this question:
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- 11.
Based on their scientific names, what is the most accurate conclusion about the relationship of the organisms Homo erectus and Homo neanderthalus?
- A.
They are genetically similar.
- B.
They are the same species.
- C.
They are in different genera.
- D.
They are in different kingdoms.
Correct Answer
A. They are genetically similar.Explanation
Based on their scientific names, the most accurate conclusion about the relationship of Homo erectus and Homo neanderthalus is that they are genetically similar. Scientific names are given to organisms based on their similarities in genetic makeup and physical characteristics. Therefore, the fact that both Homo erectus and Homo neanderthalus have similar scientific names suggests that they share genetic similarities and are closely related to each other.Rate this question:
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- 12.
An entomologist identified a new species of beetle in a South American rain forest. The beetle has all the features of the darkling beetle family Tenebrionidae and closely resembles other darkling beetles of the genus Tenebrio. What should the entomologist do next?
- A.
Give the beetle a new genus and family names.
- B.
Give the beetle a new species name not used in the genus Tenebrio.
- C.
Name the beetle after the species it is most similar to.
- D.
Discard the beetle because it is not found in existing taxonomy.
Correct Answer
B. Give the beetle a new species name not used in the genus Tenebrio.Explanation
The entomologist should give the beetle a new species name not used in the genus Tenebrio because although the beetle closely resembles other darkling beetles of the genus Tenebrio, it has been identified as a new species. Giving it a new species name will help differentiate it from other species within the same genus and avoid confusion in taxonomy.Rate this question:
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Mar 20, 2023Quiz Edited by
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Nov 19, 2014Quiz Created by
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