Question

Statement–I: Excretory organs in crustaceans are coxal glands.
Statement–II: Various volatile materials are eliminated by lungs.
Identify the correct option from the following:

• A. Both statements (I) and (II) are true
• B. Both statements (I) and (II) are false
• C. Statement–I is true, but statement–II is false
• D. Statement–I is false, but statement–II is true

Hint:

In arthropods like crustaceans, antennal glands are key excretory organs, not coxal glands. Lungs expel volatile substances like CO\textsubscript{2}.

Answer 1

The Correct Option is D

Coxal glands are not the primary excretory organs in crustaceans; they primarily use antennal glands. However, it is true that volatile waste materials like CO\textsubscript{2} and ammonia are eliminated via lungs in many organisms, including humans.