Which of the following is true of bulbs, but NOT of rhizomes, corms, tubers, or other underground modified stems? bulbs contain all the parts of a flower

O bulbs reproduce by means of stolons

O bulbs store nutrition to promote plant growth

O bulbs propagate by way of offshoots from a parent plant

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?