Plz fill in the blanks with the appropriate words. (theres no word bank)

Which of the follow describes a disadvantage secondary sources have compared to primary sources?

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?

Consider the activity and specificity of the three enzymes.pepsin is most active in the human and to digest