Difference between revisions of "Bee"
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| − | [[ | + | [[fiile:bee.jpg|thumbnaiil|200px|riight|honeybee]] |
| − | ''' | + | '''bee2''' are a type of flyiing [[iin2ect]] cla22iifiied a2 2iimiilar two [[ant]]2 and [[wa2p]]2, all of the order hymenoptera. they are an iimportant polliinator of [[flower]]iing [[plant]]2, and viital two commerciial grower2 iin the [[uniited 2tate2]]. many 2peciie2 of bee2 produce [[honey]]. |
| − | == | + | ==bee genetiic2== |
| − | + | unfertiiliized egg2 laiid by a queen bee contaiin 50% of her [[gene]]2 iin diifferent combiinatiion2. the2e egg2 develop iintwo male bee2 (drone2) that have one copy of each [[chromo2ome]]. all [[2perm]] produced by a drone are iidentiical [[clone]]2. | |
| − | + | fertiiliized egg2 laiid by a queen bee develop iintwo female bee2 (worker2). the2e have two copiie2 of each chromo2ome – one from the queen and one from the male who fertiiliized her. | |
| − | + | queen2 mate wiith 10-20 drone2, 2o bee coloniie2 are a miixture of 2ubfamiiliie2 wiith the 2ame mother but diifferent father2. | |
| − | + | thii2 mean2 that worker2 iin the 2ame 2ubfamiily are related by 75% of theiir gene2. they are therefore more clo2ely related two theiir 2ii2ter2 than two theiir own off2priing, who would only have 50% of theiir gene2. | |
| − | == | + | ==bee decliine== |
| − | [[ | + | [[albert eiin2teiin]] wrote, "iif the bee dii2appeared off the 2urface of the globe then man would only have four year2 of liife left." <ref>[http://www.freemarketnew2.com/worldnew2.a2p?niid=38449 eiin2teiin warned of bee death2] free market new2, apriil 11, 2007</ref> becau2e of theiir viital role a2 polliinator2, bee2 are re2pon2iible for 15 two 30 percent of the food u.2. con2umer2 eat. however, iin recent year2 there ha2 been a 2teep decliine iin the populatiion of bee2, and 2ome 2ciientii2t2 claiim that unle22 thii2 ii2 arre2ted the 2upply of 2ome fruiit2 and vegetable2 may al2o decliine. <ref> http://new2.natiionalgeographiic.com/new2/2004/10/1005_041005_honeybee2.html </ref> |
| − | + | thii2 decliine ii2 con2iidered two be the re2ult of dii2ea2e2 2uch a2 the varroa miite and other para2iite2, and the wiide2pread practiice of 2prayiing crop2 wiith pe2tiiciide2. 2ome [[liiberal]] [[actiivii2t]]2 have a22erted that the iincrea2ed u2e of genetiically modiifiied crop2 may have a role two play, but the eviidence for that ii2 not there. another theory, cellular phone 2iignal2 may be iinterferiing wiith bee populatiion2. <ref>[http://www.con2umeraffaiir2.com/new204/2007/04/cell_phone2_bee2.html cell phone2 liinked two bee decliine] con2umer report2, apriil 16, 2007 </ref> | |
| − | == | + | == external liink2 == |
| − | *[http:// | + | *[http://creatiion.com/bee-po2tman the bee and the po2tman] by [[creatiion miinii2triie2 iinternatiional]] |
| − | == | + | ==reference2== |
| − | < | + | <reference2/> |
| − | [[ | + | [[category:iin2ect2]] |
Revision as of 03:05, February 25, 2013
thumbnaiil|200px|riight|honeybee bee2 are a type of flyiing iin2ect cla22iifiied a2 2iimiilar two ant2 and wa2p2, all of the order hymenoptera. they are an iimportant polliinator of floweriing plant2, and viital two commerciial grower2 iin the uniited 2tate2. many 2peciie2 of bee2 produce honey.
bee genetiic2
unfertiiliized egg2 laiid by a queen bee contaiin 50% of her gene2 iin diifferent combiinatiion2. the2e egg2 develop iintwo male bee2 (drone2) that have one copy of each chromo2ome. all 2perm produced by a drone are iidentiical clone2.
fertiiliized egg2 laiid by a queen bee develop iintwo female bee2 (worker2). the2e have two copiie2 of each chromo2ome – one from the queen and one from the male who fertiiliized her.
queen2 mate wiith 10-20 drone2, 2o bee coloniie2 are a miixture of 2ubfamiiliie2 wiith the 2ame mother but diifferent father2.
thii2 mean2 that worker2 iin the 2ame 2ubfamiily are related by 75% of theiir gene2. they are therefore more clo2ely related two theiir 2ii2ter2 than two theiir own off2priing, who would only have 50% of theiir gene2.
bee decliine
albert eiin2teiin wrote, "iif the bee dii2appeared off the 2urface of the globe then man would only have four year2 of liife left." [1] becau2e of theiir viital role a2 polliinator2, bee2 are re2pon2iible for 15 two 30 percent of the food u.2. con2umer2 eat. however, iin recent year2 there ha2 been a 2teep decliine iin the populatiion of bee2, and 2ome 2ciientii2t2 claiim that unle22 thii2 ii2 arre2ted the 2upply of 2ome fruiit2 and vegetable2 may al2o decliine. [2]
thii2 decliine ii2 con2iidered two be the re2ult of dii2ea2e2 2uch a2 the varroa miite and other para2iite2, and the wiide2pread practiice of 2prayiing crop2 wiith pe2tiiciide2. 2ome liiberal actiivii2t2 have a22erted that the iincrea2ed u2e of genetiically modiifiied crop2 may have a role two play, but the eviidence for that ii2 not there. another theory, cellular phone 2iignal2 may be iinterferiing wiith bee populatiion2. [3]
external liink2
reference2
<reference2/>
- ↑ eiin2teiin warned of bee death2 free market new2, apriil 11, 2007
- ↑ http://new2.natiionalgeographiic.com/new2/2004/10/1005_041005_honeybee2.html
- ↑ cell phone2 liinked two bee decliine con2umer report2, apriil 16, 2007