algal fungi
51Vernon Ahmadjian — Dr. Vernon Ahmadjian ( * 1930 ) es un profesor estadounidense nacido en Armenia, emérito en la Universidad Clark, Worcester, Massachusetts. Es especialista en simbiosis de líquenes y ha escrito varios libros y numerosas publicaciones sobre este… …
52algae — noun primitive chlorophyll containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves (Freq. 6) • Syn: ↑alga • Derivationally related forms: ↑algal (for: ↑alga) • Hypernyms: ↑ …
53Eukaryota (classification phylogénétique) — Cette page a pour objet de présenter un arbre phylogénétique des Eukaryota (Eukarya, Eucaryotes), c est à dire un cladogramme mettant en lumière les relations de parenté existant entre leurs différents groupes (ou taxa), telles que les dernières… …
54coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …
55History of Earth — The history of Earth covers approximately 4.6 billion years (4,567,000,000 years), from Earth’s formation out of the solar nebula to the present. This article presents a broad overview, summarizing the leading, most current scientific… …
56biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; …
57Gaia hypothesis — The study of planetary habitability is partly based upon extrapolation from knowledge of the Earth s conditions, as the Earth is the only planet currently known to harbour life. The Gaia hypothesis, also known as Gaia theory or Gaia principle,… …
58Organic farming — Agriculture General …
59Bioluminescence — Flying and glowing firefly, a.k.a. Photinus pyralis …
60Sperm — The term sperm is derived from the Greek word (σπέρμα) sperma (meaning seed ) and refers to the male reproductive cells. In the types of sexual reproduction known as anisogamy and oogamy, there is a marked difference in the size of the gametes… …
