How do estuaries protect and keep humans safe? They are an ecosystem full of plants that provide hiding areas for young organisms.
They are an ecosystem full of oxygen and carbon dioxide gases.
They are an ecosystem full of nutrients and biodiversity.
They are an ecosystem full of sand and plants that reduce floods, wind, and wave impact.

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.