Any process involved in the controlled movement of a sperm cell.

primary tracheal branching (sensu Insecta)

Formation of primary branches in the tracheal system. These form from small groups of cells that migrate out at specific positions, organizing into tubes as they migrate. As in, but not restricted to, the true insects (Insecta, ncbi_taxonomy_id:50557).

The process whereby a relatively unspecialized cell acquires specialized features of a melanocyte.

secondary tracheal branching (sensu Insecta)

Sprouting of secondary branches in the tracheal system. These form from the tips of primary branches and are formed by individual cells that roll up into unicellular tubes. As in, but not restricted to, the true insects (Insecta, ncbi_taxonomy_id:50557).

di-, tri-valent inorganic anion homeostasis

The regulation of the levels, transport, and metabolism of divalent and trivalent inorganic anions within a cell or between a cell and its external environment.

The process by which the migration of an axon growth cone is directed to a specific target site in response to a combination of attractive and repulsive cues.

The process by which an axon recognizes and binds to a set of cells with which it may form stable connections.

The collection of axons into a bundle of rods, known as a fascicle.

Catalysis of the hydroxylation of C-25 of calciferol (vitamin D3) to form 25-hydroxycalciferol.

Separation of axons away from a bundle of axons known as a fascicle.

Separation of a motor axon away from a bundle of axons known as a fascicle.

The action of a molecule that contributes to the structural integrity of tooth enamel.

Interacting selectively with the enzyme protein phosphatase 2B.

The process whose specific outcome is the progression of the central nervous system over time, from its formation to the mature structure. The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the brain, spinal cord and spinal nerves. In those invertebrates with a central nervous system it typically consists of a brain, cerebral ganglia and a nerve cord.