Column I |
Column II |
||
a |
T4 |
ii |
Thyroid |
b |
PTH |
iv |
Parathyroid |
c |
GnRH |
i |
Hypothalamus |
d |
LH |
iii |
Pituitary |
Define a taxon. Give some examples of taxa at different hierarchical levels.
What are the steps involved in formation of a root nodule?