Task: Class Definition Understanding (ontology: Human_Society/EmotionOntology)

Which of the following definitions best describes 'turning behavior involved in mating'?

A. Fine-tuning the spatial position of a larva in response to variability in their environment. For example, reorientation of a larva in the direction of a food source.
B. Location, by the male, of his partner's vulva when backing along the ventral side of the hermaphrodite during mating. The male stops at the vulva, coordinates his movements to the hermaphrodite's, and positions his tail precisely over the vulva so that he may insert his spicules and ejaculate.
C. The behavior of a male, for the purpose of attracting a sexual partner. An example of this process is found in Drosophila melanogaster.
D. The sharp ventral turn performed by the male as he approaches either the hermaphrodite head or tail, whilst trying to locate his partner's vulva. Turning occurs via a sharp ventral coil of the male's tail.

Answer: The sharp ventral turn performed by the male as he approaches either the hermaphrodite head or tail, whilst trying to locate his partner's vulva. Turning occurs via a sharp ventral coil of the male's tail.