The tiny hole is called a stoma. The leaf "breathes" through the hole.
If you mean the microscopic holes typically found on the underside of a leaf that allow gases to exchange, then they are called stomata.
Stomata
The breathing hole on the underside of a leaf is called a stomata. Stomata are tiny pores that allow for the exchange of gases such as oxygen and carbon dioxide between the leaf and the surrounding environment. This exchange is crucial for photosynthesis and respiration in plants.
Tiny little pores on the leaf's surface called Stomata
micropyle
They are called sphericals.
micropyle
Black holes are generally categorized into three buckets - the largest being called supermassive, the 'medium' being associated with stellar evolution and called 'stellar mass' black holes, and the smallest or tiny ones called "microscopic" black holes.
The hole in the seed coating or testa is called the micropyle. Its function is to allow water to enter to start the seed growing.
The tiny hole on the seed coat is called the micropyle. It allows water and gases to enter the seed, aiding in the process of germination.
They are called sphericals.
it gives the leaf food, carbon dioxide enters through tiny holes called stomata, Oxygen leaves plant through stomata. This is called respiration
The seed leaf of a plant is the tiny leaf that forms inside the seed itself. It is called a cotyledon. Monocots have one seed leaf. Dicots have two.