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A: External syngamy is considered disadv...

A: External syngamy is considered disadvantageous as compared to the internal syngamy.
R. The offspring produce by externla symgamy are more vulnerable to predators.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion

B

It both Assertion & Reason are true but the reason is not the correct explanation of the assertion

C

If Assertion is true statement but Reason is false

D

If both Assertion and Reason are false statements

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding External Syngamy:** - External syngamy, also known as external fertilization, occurs when the fusion of male and female gametes happens outside the body of the organism. This process is common in aquatic organisms like many fish and amphibians. 2. **Identifying the Disadvantages of External Syngamy:** - One major disadvantage of external syngamy is that organisms must release a large number of gametes to increase the chances of successful fertilization. This is necessary because many gametes may be lost or not fertilized due to environmental factors. 3. **Vulnerability of Offspring:** - The offspring produced through external syngamy are often more vulnerable to predators. Since they are released into the external environment, they face a higher risk of being eaten before they reach maturity. 4. **Comparison with Internal Syngamy:** - In contrast, internal syngamy (or internal fertilization) occurs within the body of the female organism, providing a more protected environment for the developing offspring. This can lead to a higher survival rate for the young. 5. **Conclusion:** - Both the assertion that external syngamy is disadvantageous compared to internal syngamy and the reason that offspring produced by external syngamy are more vulnerable to predators are true. The reason effectively explains the assertion. **Final Answer:** - Both A and R are true, and R is the correct explanation of A. ---
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