When an individual perceives an event (stressor) as stressful, the controls the activation of the endocrine system and the (autonomic) nervous system?

Grignard reactions are highly exothermic and are performed in ether solvent. there is a real risk of fire during this reaction. in the case that a fire should occur in your distillation apparatus, what is the best course of action? g

What did hunter gathers do to alter the environment?

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?