The suture with smooth saddles and crenulated lobes is characteristic of the ceratitic suture, which is typically found in the order Ceratites of cephalopods
Group I | Group II |
P. Dissepiment | 1. Echinodermata |
Q. Delthyrium | 2. Trilobita |
R. Pygidium | 3. Brachiopoda |
S. Ambulacrum | 4. Anthozoa |
The figure illustrates the soil zinc tolerance of the grass species Anthoxanthum along a transect from inside a mine to the middle of a pasture outside the mine.
\includegraphics[width=0.5\linewidth]{62a.png}
Which one or more of the following processes explain(s) the observed pattern of zinc tolerance in this grass species?