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.

You haven't chosen an answer, and I would not know which is correct. Are you sure the subspecies aren't supposed to be indented or otherwise differentiated?

I SAID D BECAUSE IT SEEMS CLOSE THAN OTHERS IN ORDER

You may be right. If you are not sure, look up the word in a dictionary. You can do that on line by typing the word in your browser, as in "Pycnogonida - definition", and press "enter."

To determine the correct statement based on the given outline, we need to understand the hierarchical relationship between the different taxa mentioned.

Let's break it down:

1. Arthropoda: This is the phylum that includes all the mentioned taxa. It is the highest level of classification.

2. Chelicerata: This is a subphylum within Arthropoda. It includes horseshoe crabs, spiders, mites, and scorpions.

3. Merostomata: This is an order within Chelicerata and includes only horseshoe crabs.

4. Arachnida: This is a class within Chelicerata and includes spiders, mites, and scorpions.

5. Pycnogonida: This is a class within Arthropoda, but it is not a part of Chelicerata. It includes sea spiders.

6. Crustacea: This is a subphylum within Arthropoda. It includes copepods, barnacles, crabs, lobsters, and shrimp.

7. Copepoda: This is an order within Crustacea and includes small crustaceans.

8. Cirripedia: This is an order within Crustacea and includes barnacles.

9. Malacostraca: This is a class within Crustacea and includes crabs, lobsters, and shrimp.

10. Uniramia: This is a subphylum within Arthropoda. It includes insects and other terrestrial arthropods.

11. Insecta: This is a class within Uniramia and includes insects.

12. Chilopoda: This is a class within Uniramia and includes centipedes.

13. Diplopoda: This is a class within Uniramia and includes millipedes.

Now let's evaluate the statements:

A. Uniramia is a subset of Crustacea: This statement is incorrect because Uniramia is a separate subphylum within Arthropoda, while Crustacea is another subphylum within Arthropoda. They are both independent branches.

B. Diplopoda is a subset of Chilopoda: This statement is incorrect. Both Diplopoda and Chilopoda are independent classes within the subphylum Uniramia. They are not subsets of each other.

C. Chelicerata is more closely related to Crustacea than to Uniramia: This statement is incorrect. Chelicerata and Crustacea are separate subphyla within Arthropoda, and they are not more closely related to each other than they are to Uniramia.

D. Pycnogonida is more closely related to Merostomata than to Copepoda: This statement is correct. Pycnogonida (sea spiders) and Merostomata (horseshoe crabs) both belong to the subphylum Chelicerata, whereas Copepoda is in the subphylum Crustacea. Therefore, Pycnogonida is more closely related to Merostomata than to Copepoda.

Based on the analysis above, the correct statement is D.