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AMORE DI RAGNO – Vita amorosa dei Salticidae

Simbiosi nel Lán (orchidea)

Differenze fra ciclo vitale: basidiomicete vs angiosperma

Differenza tra spora e seme

Velocità di fotosintesi: da cosa dipende?

GLI ANIMALI PIU’ PUZZOLENTI AL MONDO
Categorie / Categories
THERE IS DESERT AND DESERT

In geography, desert is defined as an area of the earth’s surface in which the precipitations are unlikely to exceed 250 millimeters per year, and the soil is mostly arid, with little or no vegetation. Among the deserts, according to this definition, must also be considered Polar Regions, in addition…
TRILOBITES
NEITHER FISH NOR FOWL

Bull shark – Carcharias taurus (Rafinesque, 1810) It’s easy to say fish, but in scientific language that term is improper. The so-called “fish” actually fall into two distinct classes, the Chondrichthyes and Osteichthyes. So to speak, the same phylogenetic distance that exists between the class of Amphibians with the class…
WINGS OR FINS?
THE CIUICI’ – Coal tit
SALT or HALITE

Group III – Aloidi NaCl Very common The Rock Salt or Halite occurs in cubic crystals often “hopper” and with rounded corners, usually colorless or white, sometime yellow, red, brown and even blacks; more rarely patchy irregular blue and purple; predominantly cubes and in massive sedimentary beds, but also granular,…