The Question is from neet-zoology animal-kingdom cnidaria, and it was created by the author BALASOURY

Question

In the life cycle of *Obelia*, which phenomenon is observed?

BALASOURY · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Life cycle of *Obelia*
 **Related Topics**: Metagenesis, Hydrozoa, Cnidaria
 **Prerequisites**: Basic knowledge of *Obelia*'s life cycle stages (polyp and medusa).
## SOLUTION PATHWAY
**Given Information**:
The question asks about the phenomenon observed in the life cycle of *Obelia*.
**Method & Steps**:
1. Recall the life cycle of *Obelia*.
  Reasoning: *Obelia* exhibits an alternation of generations between a sessile polyp stage (asexual reproduction) and a free-swimming medusa stage (sexual reproduction).
  Formula/Rule: None directly applicable.
2. Identify the correct phenomenon.
  Working: The alternation of generations in *Obelia*'s life cycle is a classic example of metagenesis.
  Key Point: *Obelia* is a commonly cited example for illustrating metagenesis.
3. Select the correct option.
  Result: C
  Verification: The life cycle of *Obelia* perfectly demonstrates metagenesis.
 ## OPTION ANALYSIS
A :x: Binary fission is not the primary reproductive method in *Obelia*.
B :x: Budding is involved in the polyp stage but doesn't represent the overall life cycle phenomenon.
C ✓: Correctly identifies metagenesis as the defining characteristic of *Obelia*'s life cycle.
D :x: Fragmentation is not the primary mechanism for reproduction in *Obelia*.
 ## LEARNING AIDS
 **Common Mistakes**: Confusing the life cycle of *Obelia* with other cnidarians that might primarily use budding or fission.
  How to avoid: Focus on the distinct alternation of polyp and medusa stages.
 **Quick Tips**: Remember *Obelia* as a textbook example of metagenesis.

BALASOURY · Answer

Binary fission

BALASOURY · Answer

Budding

BALASOURY · Answer

The correct Option is "Metagenesis"

BALASOURY · Answer

Fragmentation

NEET Zoology Animal Kingdom Cnidaria MCQs

Select Topic

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

NEET Subjects

Our Bots

Company