The Question is from neet-zoology , and it was created by the author T HARITHA

Question

Which of the following is a characteristic feature of the Arthropoda phylum?

T HARITHA · Accepted Answer

## CORE INFORMATION
✓ **Answer**: [C]
## CONCEPT FRAMEWORK
	**Primary Concept**: Characteristics of the Arthropoda phylum
	**Related Topics**: Invertebrate zoology, evolution of body plans
	**Prerequisites**: Basic understanding of animal classification
## SOLUTION PATHWAY
**Given Information**:
		- Options regarding characteristics of the Arthropoda phylum
		- Importance of identifying accurate features
**Method & Steps**:
	1. Identify characteristics of Arthropoda.
		Reasoning: Arthropods are known for specific structural features.
		Formula/Rule: None applicable.
	2. Evaluate each option against known features.
		Working: 
		- Option A: Absence of a body cavity - Incorrect, as arthropods have a hemocoel.
		- Option B: Soft, unsegmented body - Incorrect, arthropods have a segmented body.
		- Option C: Jointed appendages - Correct, this is a defining characteristic.
		- Option D: Asymmetrical body plan - Incorrect, arthropods are typically bilaterally symmetrical.
	3. Confirm the correct option.
		Result: Option C is the defining characteristic of arthropods.
		Verification: Cross-check with biological classifications.
## OPTION ANALYSIS
[A] :x: Incorrect because arthropods possess a body cavity known as hemocoel.
[B] :x: Incorrect as arthropods have a segmented and chitinous exoskeleton, not soft and unsegmented.
[C] ✓: Correct as jointed appendages are a key feature of arthropods, allowing for movement and interaction with the environment.
[D] :x: Incorrect since arthropods exhibit bilateral symmetry, not asymmetry.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing body plans: Remember arthropods are segmented.
		2. Overlooking jointed appendages: They are crucial in recognizing arthropods.
	**Quick Tips**:
		1. Remember 'jointed legs' or 'exoskeleton' as indicators of arthropods.
		2. Use mnemonic: "Arthropods have appendages that are well-jointed!"

T HARITHA · Answer

Absence of a body cavity

T HARITHA · Answer

Soft, unsegmented body

T HARITHA · Answer

The correct Option is "Jointed appendages"

T HARITHA · Answer

Asymmetrical body plan

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