Arthropoda
Chelicerata
Merostomata (horseshoe crabs)
Arachnida (spiders, mites, scorpions)
Pycnogonida (sea spiders)
Crustacea
Copepoda (small crustaceans)
Cirripedia (barnacles)
Malacostraca (crabs, lobsters, shrimp)
Uniramia
Insecta (insects)
Chilopoda (centipedes)
Diplopoda (millipedes)
Which of the following statements is correct based on the outline above?
A. Uniramia is a subset of Crustacea.
B. Diplopoda is a subset of Chilopoda.
C. Chelicerata is more closely related to Crustacea than to Uniramia.
D. Pycnogonida is more closely related to Merostomata than to Copepoda.
My answer is D
To determine the correct statement based on the given information, we need to look at the relationships between the different taxa listed in the outline.
Let's analyze each option one by one:
A. Uniramia is a subset of Crustacea:
According to the given information, Uniramia and Crustacea are two separate groups under the larger category of Arthropoda. Therefore, statement A is not correct.
B. Diplopoda is a subset of Chilopoda:
Diplopoda and Chilopoda are both separate groups under the larger category of Uniramia. Therefore, statement B is not correct.
C. Chelicerata is more closely related to Crustacea than to Uniramia:
Chelicerata and Crustacea are both separate groups under the larger category of Arthropoda. Uniramia is also another group under Arthropoda, but it is not mentioned that Chelicerata is more closely related to Crustacea than to Uniramia. Therefore, statement C is not correct.
D. Pycnogonida is more closely related to Merostomata than to Copepoda:
According to the given information, Pycnogonida and Merostomata are both separate groups under the larger category of Chelicerata. Copepoda, on the other hand, is mentioned under the group Crustacea. Based on this information, it is correct to say that Pycnogonida is more closely related to Merostomata than to Copepoda. Therefore, statement D is correct.
Therefore, the correct statement based on the outline provided would be D. Pycnogonida is more closely related to Merostomata than to Copepoda.