When acacia trees are grazed by animals, they quickly react by producing chemicals called tannins, which make their leaves unappetizing and tough to digest.
That is why the crucial claim of the anti-smokers is that of passive smoking: your right to smoke ends at my nose, they say, and liberals have been comprehensively wrong-footed by this.
Mice susceptible to the avian flu virus were passively immunized with one of the four antibodies or a control antibody to either diphtheria or anthrax.
Mice immunized with the control antibody had high levels of virus in their lungs, with evidence that the virus had spread beyond the lungs and into the brain and spleen.
We should not be less vigilant to plagiarists and their followers because of our victory. Designers who are freed of originalism will put themselves in a passive position.
Did you seek an education in active performance, or did you seek to be educated in passive reception and automatic acquisition of information that was fed to you?
Evicted from their homes due to the construction of new skyscrapers, locals live in shanty towns surrounded by fridges, televisions, fans and white goods whilst waiting to be rehoused.