univalve
(Science: zoology) A shell consisting of one valve only; a mollusk whose shell is composed of a single piece, as the snails and conchs.
most univalves are spiral and are the shells of gastropods, but many belong to cephalopods and pteropods. A large number of univalves belonging to the gastropods are conical, cup-shaped, or shieldlike, as the limpets.
Origin: Uni- – valve: cf. F. Univalve.
Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..
Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's surviv..
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..