Which of following statements about the Neolithic Agricultural Revolution is true?

During this time, the advent of agriculture began in a single location and spread around the world.
With the start of this revolution, hunting and gathering communities disappeared completely.
The revolution began in various hearths independently and then spread around the world from each hearth.
Little diversity in crop innovations emerged from each hearth during this revolution.
I only
III only
I and IV
II and III
I, II, and IV

Which of the following refers to treating all patients or first aid victims as a potential source of bloodborne pathogens by taking all precautions to prevent contamination?

For review 1. in terms of which government is sovereign, differentiate among a unitary system, a confed- eral system, and a federal system of government. 2. to which level of government does the constitution distribute the enumerated po implied powers? concurrent powers? reserved powers? provide several power. 3. what matters fall within the scope of state sovereignty? differentiate among dual federalism, cooperative federalism, centralized federalism, and conflicted federalism. how does the national government use grants-in-aid, mandates, and preemption to direct the policy of state and local governments? 6. what do we mean by intergovernmental relations? why is the term a good description of u.s. federalism today? 7. list several advantages and several disadvantages of a federal system.

When the blood leaves the atria (upper chambers) where does it flow to? a. aorta b. lungs c. ventricles d. rest of the body