When the environment changes, organisms need survive

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

This is the process of making a prediction based on the results of prior observations of similar events.

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million