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Given below are two statements
Statement (I) : Lepisma (Thysanura) males deposit spermatophores on the ground in the presence of females
Statement (II) : Collembola males deposit spermatophores on the ground independently of the females
In light of the above statements, choose the most appropriate answer from the options given below.
EXPLANATION
Excretory, Endocrine, Reproductive Physiology
- Spermatophore Deposition in Lepisma (Thysanura): Male silverfish do not engage in copulation via intromission; instead, in the active presence of a receptive female during ritualized courtship, the male spins silk threads on the ground and deposits a spermatophore droplet, subsequently guiding the female to take it up into her gonopore.
- Spermatophore Deposition in Collembola: Male springtails produce stalked spermatophore droplets and anchor them blindly to the soil or leaf litter substrate independently of whether a female is immediately present; females later encounter and pick them up passively.
- Conclusion: Both statements accurately describe apterygote reproductive behavioral biology.
- Correct Option: Option 1 (Both Statement (I) and Statement (II) are correct).
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