The female locust is equipped with unique digging tools, namely two pairs of valves—a dorsal and a ventral—utilized for excavating an underground hole in which she lays her eggs. This apparatus ensures that the eggs are protected from potential predato
To distinguish between the dorsal and ventral surfaces of the body of an earthworm, follow these steps:1. Identify the Orientation: - The earthworm has a distinct orientation. The dorsal surface is the upper side, while the
a2. Place earthworm in the dissecting tray & rinse off the excess preservative. Identify the dorsal side, which is the worm’s rounded top, and the ventral side, which is its flattened bottom. Turn the worm ventral side up, as shown in the diagram below. 1.戴上安全风镜,手套,一个实验室...
Impulse conduction in the myelinated giant fibers of the earthworm. Structure and function of the dorsal nodes in the median giant fiber - Gu虉nther - 1976 () Citation Context ...rnodal Review R30a (Candacia; photo courtesy of April Davis). (B) Myelinated axons . (D) Portion of a...