What are 2 things that two male polar bears might compete for in an ecosystem?

How do chloroplasts set plants apart from other living things

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.

What problem would a person most likely have if her kidney did not work correctly?