Results 211 to 220 of about 1,180,227 (264)

The biology of reactive sulfur species (RSS)

Plant Physiology and Biochemistry, 2012
Sulfur is an essential and quantitatively important element for living organisms. Plants contain on average approximately 1 g S kg⁻¹ dry weight (for comparison plants contain approximately 15 g N kg⁻¹ dry weight). Sulfur is a constituent of many organic molecules, for example amino acids such as cysteine and methionine and the small tripeptide ...
Martin C H, Gruhlke, Alan J, Slusarenko
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GENERAL BIOLOGY OF SPECIES

Ibis, 1967
Enderson, J. H. 1965. A breeding and migration survey of the Peregrine Falcon.Hudson, R. 1966. Adult survival estimates for two Antarctic petrels.Kobriger, G. D. 1965. Status, movements, habitats, and foods of Prairie Grouse on a sandhills refuge.Lindhe, U. 1966, (The choice of prey of Tengmalm's Owl (Aegolius funereus) in LyskseleParker, S. A. 1963. A
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Definitions of Species in Biology

The British Journal for the Philosophy of Science, 1969
One of the major problems confronting biologists is that of classifying organisms. This is usually done in a hierarchical manner. First, organisms are grouped together into classes (called 'taxa' by biologists) which are assumed to be incapable of significant subdivision; then, these classes are in turn grouped so that the members of a number of ...
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GENERAL BIOLOGY OF SPECIES

Ibis, 1968
Balfour, E., Anderson, A. & Dunnet, G. M. 1967. Orkney Cormorants—their breeding distribution and dispersal.Bernis, F. 1966. El Buitre Negro Aegypius monachus en Iberia.Boase, H. 1965. Movements of the Mute Swan in East Scotland.Boylan, P. J. 1967. Western Atlantic Fulmars on the East Yorkshire coast.Bray, R. P. 1966.
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Biology of Microsporidian Species Infecting Mammals

Advances in Parasitology, 1998
Microsporidia (phylum Microspora) are obligate intracellular protozoan parasites that infect a wide range of vertebrate and invertebrate hosts. Over 1000 species have been classified into approximately 100 genera, and at least 13 species have been reported to infect mammals.
E S, Didier, K F, Snowden, J A, Shadduck
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Biology of the gametes of some teleost species

Fish Physiology and Biochemistry, 1986
Our knowledge of the biology of fish gametes is still limited. Up to now research was short-term, aiming at solving practical questions connected with gamete storage and artificial insemination. More information on gamete biology is now available and has been summarized in this minireview.In vivo storage of gametes in the genital tract after ovulation ...
R, Billard, R, Christen, M P, Cosson, J L, Gatty, L, Letellier, P, Renard, A, Saad   +6 more
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Biology, Speciation, and Utilization of Peanut Species

2016
Fil: Tallury, Shyamalrau P..
Stalker, H. Thomas, Tallury, Shyamalrau P., Seijo, José Guillermo, Leal Bertioli, Soraya C.M.   +3 more
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Contributions to the Biology of Larrea Species

Ecology, 1974
Seeds were collected from three taxa: L. divaricata from Arizona in the Sonoran desert of North America (LDNA); and L. divaricata and L. cuneifolia from northwestern Argentina, in the monte of South America (LDSA and LC). These three desert shrubs are generally not sympatric, and LDSA appears to occupy the most mesic sites.
M. G. Barbour, D. V. Diaz, R. W. Breidenbach   +2 more
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The Evolutionary Biology of Species

2019
Abstract‘Species’ are central to understanding the origin and dynamics of biological diversity; explaining why lineages split into multiple distinct species is one of the main goals of evolutionary biology. However, the existence of species is often taken for granted, and precisely what is meant by species and whether they really exist as a pattern of ...
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Species Biology and Conservation Funding

Science, 2002
In his Policy Forum “Conservation priorities for Russian mammals” (16 Aug., p. [1123][1]), L. V. Polishchuk notes that limited government financial resources are often devoted to the conservation of only a few, high-profile flagship species.
M. J. Walpole, R. J. Smith, N. Leader-Williams   +2 more
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