It directs food to the mouth.
tendons and ligaments
heterotroph
oral histology is the study of the structure and function of oral (mouth) tissues through the use of a microscope
The spines on the oral surface are softer and bend to cover the mouth of the starfish as well as the ambulacral grooves. They are basically for protection.
The original Ping Eye golf clubs had v grooves.
The functions of speech communication are: Referential Phatic Expressive Interactional Transactional
Some protista are autotrophic, some heterotrophic. AUTOTROPHS These protista make their food through photosynthesis. HETEROTROPHS A) Feed on [bacteria] through their oral grooves or endocytosis.
I assume you mean GROOVES - the Glacial Grooves were formed by the receeding glaciers.
A quarter has 119 grooves, or reeds. The grooves are used as an anti-counterfeiting strategy.
150 grooves
a quarter has 130 grooves.
Vertical grooves are called "striations."