Identify incorrect combinations among the following

The given combinations are related to biological terms. Let's analyze each one:
Conclusion: The incorrect combination is Hypnone (Option D), as it does not play a role in the given mesodermal function.
Match the following:

Assertion: The male ants are developed by parthenogenesis from unfertilized eggs.
Reason: The sex of offspring depends on the type of sperm that fertilizes the ovum, which is not relevant since male ants develop through haploid parthenogenesis, which does not involve fertilization.
Match the following:

Two concentric thin circular rings of radii 50 cm and 40 cm each, carry a current of 3.5 A in opposite directions. If the two rings are coplanar, the net magnetic field due to the two rings at their centre is: