The most common causal explanation students provided for the existence of different corolla lengths within populations was some environmental factor (climate, pollinators, etc)., either with no reference to the mechanism by which the environment caused variation or with a reference to environment-dependent natural selection being the cause of variation (rather than acting on it).
In my experience, if you only operate and extend your frame of reference to environments in which you are comfortable, you are not going to keep up with the pace of change happening around you. 2. Seek opportunities for professional growth, not simply title progression.
In his equivalent of a State of the Union address this year, Prime Minister Wen Jiabao made 48 references to "environment," "pollution" or "environmental protection".
There is reference to the environment, but generally, this is in regard to environments and the goods and services they provide humans, rather than for the intrinsic value or right of environments and ecosystems for themselves.
In his essay, Mr. Yergin's first and only reference to the environment appears in the final sentence.
Xanadu's design "could in some ways make reference to its environment, to the wetlands, the wildlife," but it does not.
In his Autumn Statement last week, George Osborne made no mention of climate change or carbon emission targets, and his only reference to the environment was more money for flood defences, which Mr Miliband said was "belated finger-in-the-dyke funding".
Some attacked Yang, who is from Kunming, one of China's least polluted cities, for depicting it as smog choked, even though her comments on China's air quality appeared to be largely a political metaphor, not a reference to the environment.
Students' explanations about fitness in the context of this assessment were quite incomplete, often missing the reference to the environment and its selecting action on phenotypes.
