2013gre考试预测:4月gre阅读备考机经(11)
新gre考试阅读机经:Honey bee的fungeewww.examw.com Ingestion of food containing spores of the pathogen Ascosphaera apis causes a fatal fungal disease known as chalk brood in honeybee larvae. However, larvae must be chilled to about 30°C(normal brood-comb temperature is 33-36°C)for the disease to develop.Accordingly, chalk brood is most common in spring and in small colonies. A recent study revealed that honeybees responsible for hive-temperature maintenance purposely raised the hives’ temperature when colonies were inoculated with A.... [ 查看全文 ]2013gre考试预测:4月gre阅读备考机经(11)的相关文章