Help 15 points

What 2 major air masses lead to the tornadoes in Tornado Alley?

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

The activity of the modern sample is 1.10 bq . how long does that measurement take?

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body