body of the mother and the mother then gives live birth. this can involve having the offspring develop within the protection of an egg inside the mother, with the offspring nourished by the egg yolk, or it can involve being nourished directly the mother, not within an egg, such as with placental animals...
element in the molecules of amino acids , proteins , nucleic acids , and other substances vital to life. specific bacteria (such as those of the genus rhizobium) possess certain enzymes ("nitrogenases") that can fix atmospheric nitrogen (see nitrogen fixation ) into a form (ammonium ion) that is chemically...
element in the molecules of amino acids , proteins , nucleic acids , and other substances vital to life. specific bacteria (such as those of the genus rhizobium) possess certain enzymes ("nitrogenases") that can fix atmospheric nitrogen (see nitrogen fixation ) into a form (ammonium ion) that is chemically...
, genes or gene products, to reduce the effects of undesirable organisms to favour organisms useful to human, such as crops, trees, animals and beneficial microorganisms. this strategy of control is ecologicaly clean and compatible with different models of agriculture: organic, biological and integrated...
, genes or gene products, to reduce the effects of undesirable organisms to favour organisms useful to human, such as crops, trees, animals and beneficial microorganisms. this strategy of control is ecologicaly clean and compatible with different models of agriculture: organic, biological and integrated...
, genes or gene products, to reduce the effects of undesirable organisms to favour organisms useful to human, such as crops, trees, animals and beneficial microorganisms. this strategy of control is ecologicaly clean and compatible with different models of agriculture: organic, biological and integrated...
, genes or gene products, to reduce the effects of undesirable organisms to favour organisms useful to human, such as crops, trees, animals and beneficial microorganisms. this strategy of control is ecologicaly clean and compatible with different models of agriculture: organic, biological and integrated...
, genes or gene products, to reduce the effects of undesirable organisms to favour organisms useful to human, such as crops, trees, animals and beneficial microorganisms. this strategy of control is ecologicaly clean and compatible with different models of agriculture: organic, biological and integrated...
, genes or gene products, to reduce the effects of undesirable organisms to favour organisms useful to human, such as crops, trees, animals and beneficial microorganisms. this strategy of control is ecologicaly clean and compatible with different models of agriculture: organic, biological and integrated...