external gill stalks
The President of the United Mexican States, Felipe Calderón
The thing on a rooster's head is called a comb.
The things that stick out of a ladybug's head are antennae. The singular form of this word is antenna.
Really, people? They're called EARS.
ANTLERS!!
It's called a crest.
The President of the United Mexican States. The President is the head of state, head of government, and supreme commander of the Mexican armed forces. Mexican Presidents are limited to one six-year term. They can't be re-elected.
The 'horns' are formed from ossified cartilage, and are called ossicones.
The Mexican president, who is both head of government and head of state.
Bearing caps.
Those are its gills (e.g. for breathing). Salamanders such as the Axolotl have external gills, unlike internal gills found in fish.
No. The Mexican president is both head of state and head of government.