The are important organs for homeostasis of the body because they maintain the acid-base balance and the water-electrolyte balance of the blood. a heart b) kidneys c) liver d) stomach

Ocean waves move up and down in circles, but transmit horizontally toward the shore.

Sydney drew a flow chart to illustrate the nitrogen cycle. which labels best complete the flow chart? x: producers undergo photosynthesis. y: nitrogen compounds are released into the air. x: nitrogen compounds are released into the air. y: producers undergo photosynthesis. x: free nitrogen is in the atmosphere. y: producers absorb nitrogen compounds through their roots. x: producers absorb nitrogen compounds through their roots. y: free nitrogen is in the atmosphere.

What does resonance result in? quieter sounds frequency amplitude louder sounds