No. It is scar tissue that forms between the skin of the ear and the cartilage as a result of trauma. This can result in contraction and deformation of the ear pinna.
No, it is not fungi
Yes, cauliflower grows in the ground and produces a fleshy hard stem which grows to become the head .
Yes, it grows on top of the soil.
fungus
No, it grows on a stem.
The type of fungus that grows horizontal to food source are said to be heterotrophic. Such fungus do not process their own food.
When mold grows on your toes.
Fungus gardens
There is a type of cauliflower plant called "cheddar" that grows a yellow color with a milder taste than regular white cauliflower.
There are fungi such as mycobiont, red fungus, and yellow fungus!
Fungus.
When mold grows on your toes.
Leafcutter ants tending fungus "garden" - the fungus grows on the leaf material.