Which statement below is false? a) weight depends on the force of gravity. b) mass is the amount of matter in an object. c) mass is a constant no matter where you are located. d) weight is a constant no matter where you are located.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

In the diagram below, which organelle is a ribosome, which combines amino acids and produces proteins? оооо

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?