The activity that is the most intense is ___

Which challenges do countries face in limiting the spread of communicable diseases? check all that apply. 1. lack of vaccinations 2. lack of healthy food available 3. increase of worldwide travel 4. decrease of available clean water 5. increase in migration of infected animals

Can you get chlamydia from sleeping in the same bed

What else happens in your cardiovascular system in response to your sympathetic nervous system? why might your blood vessels need to expand to accommodate this?