The topics are, could be biology, ecology, geology, business.

主题可能是生物，生，地质，商业。

The first covers science: anthropology, biology, ecology and psychology.

第一部分涵盖了科究：人类、生物、生和心。

She is a wildlife disease ecologist at Cornell University's College of Veterinary Medicine and was not involved in the study.

她是康奈尔大兽医院的野生生物疾病生家，她没有参与这项究。

The study appears in the :  Multidisciplinary Journal of Microbial Ecology.

究发表在《多科微生物生杂志》上。

And it's never too late to catch up on those biology and ecology courses; they'll be here on Youtube forever.

而且随时都可以补上那些生物和生课程；它们会在YouTube上永远保存。

Right now I'm in Harvard Forest outside of Petersham, Mass. , getting a tour of the forest floor from Michael Silverstein and Zoey Werbin, a couple of Boston University grad students who study microbial ecology.

现在我正在马萨诸塞州彼得舍姆外的哈佛森林中，由波士顿大微生物生究生 Michael Silverstein 和 Zoey Werbin，带领我探访这座森林的地表。

83. The intelligent biologist and athletic mountain climber were on a voyage to reach the peak where they would use their abacus to collect statistics for mathematics biology and ecology experiments in a new climate.

这位聪明的生物家和健壮的登山队员处于攀向峰顶的途中，在那儿（峰顶）他们将使用算盘，为在新气候下的数生物和生实验收数据。