Xarog in most instances you're not even eating the plant itself - you're eating what the plant bears. They may have chemical reactions that dictate their behaviour, however they're not capable of making independent decisions. In that sense they're not aware - they lack the ability to think.
The same can be said of animals. Do they really think, or do they react to instinct. Dogs might seem intelligent, but do they really think? Don't they just learn to react according to what their master is telling them?