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An aquatic ecosystem is an ecosystem found in and around a body of water, in contrast to land-based terrestrial ecosystems.Aquatic ecosystems contain communities of organisms—aquatic life—that are dependent on each other and on their environment.
The light-harvesting system of PSI uses multiple copies of the same transmembrane proteins used by PSII. The energy of absorbed light (in the form of delocalized, high-energy electrons) is funneled into the reaction center, where it excites special chlorophyll molecules (P700, with maximum light absorption at 700 nm) to a higher energy level.
The subjects of the hymns cover a wider spectrum than in the other books, dedicated not only to deities or natural phenomena, including deities that are not prominent enough to receive their own hymns in the other books (Nirrti 10.59, Asamati 10.60, Ratri 10.127, Aranyani 10.146, Indrani 10.159), but also to objects like dice (10.34), herbs (10.97), press-stones (for Soma, 10.94, 175) and ...
The word acronym is formed from the Greek roots akro-, meaning 'height, summit, or tip', and -nym, 'name'. [6] [unreliable source] This neoclassical compound appears to have originated in German, with attestations for the German form Akronym appearing as early as 1921.
On the other hand, it was not well known until the middle of the 20th century that infants also required the presence of warmth and affection, known as "maternal warmth". The greatest number of dependency needs seem to be encompassed in infancy, but dependency needs begin to change and decrease with age and maturity. This marked decrease in ...
The unusual density curve and lower density of ice than of water is essential for much of the life on earth—if water were most dense at the freezing point, then in winter the cooling at the surface would lead to convective mixing. Once 0 °C are reached, the water body would freeze from the bottom up, and all life in it would be killed. [36]
Pratītyasamutpāda has been translated into English as dependent origination, dependent arising, interdependent co-arising, conditioned arising, and conditioned genesis. [31] [16] [note 3] Jeffrey Hopkins notes that terms synonymous to pratītyasamutpāda are apekṣasamutpāda and prāpyasamutpāda. [37]
English words are not generally marked for word class. It is not usually possible to tell from the form of a word which class it belongs to; inflectional endings and derivational suffixes are unique and specific to. On the other hand, most words belong to more than one word class.