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class The principal category for taxa ranking between division and order. clathrate Shaped like a net or lattice; pierced with apertures, as with a cage. clavate Club-shaped. clavuncula In the Apocynaceae, an enlarged, drum-shaped stigma of which the sides and lower surface are the receptive zones. Coherent with the anther s or not. claw 1.
Phototrophic bacteria derive energy from light using photosynthesis, while chemotrophic bacteria breaking down chemical compounds through oxidation, [106] driving metabolism by transferring electrons from a given electron donor to a terminal electron acceptor in a redox reaction. Chemotrophs are further divided by the types of compounds they ...
Light is a critical resource because it is necessary for photosynthesis. [95] Plants use their leaves to shade other plants from sunlight and grow quickly to maximize their own expose. [ 95 ] Water too is essential for photosynthesis; roots compete to maximize water uptake from soil. [ 97 ]
Costasiella ocellifera is a small (5–13 mm) species of sea slug, a shell-less marine gastropod mollusk in the family Costasiellidae. [2] Costasiella ocellifera, and other members of the family Costasiellidae are often mistakenly classified as nudibranchs because they superficially resemble other species of that group, but they are actually a part of the Sacoglossa superorder of sea slugs ...
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
2 catalyst combined with an Au light absorber accelerated hydrogen sulfide-to-hydrogen reactions. The process is an alternative to the conventional Claus process that operates at 800–1,000 °C (1,470–1,830 °F). [29] A Fe catalyst combined with a Cu light absorber can produce hydrogen from ammonia (NH 3) at ambient temperature using visible ...
The sixth and final season of the American television series This Is Us continues to follow the lives and connections of the Pearson family across several time periods. The season is produced by Rhode Island Ave. Productions, Zaftig Films, and 20th Television, with Dan Fogelman, Isaac Aptaker, and Elizabeth Berger serving as showrunners.