What are two ways to reduce air pollution and slow climate change?

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

What processes take place before the mature mrna exits the nucleus?

Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?