What is the word for- all the organisms living in an area and the nonliving features of the environment?

Why do we perceive objects as retaining their brightness under different lighting levels?

How do living things obtain phosphorus

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.