In the rural Southwestern United States, Howdy is a colloquial contraction of the formal greeting of How do you do?, and as such is considered a formal and acceptable greeting for residents of that region of the world. Howdy is also the official greeting of Texas A&M University. The word became recently popular in other areas of the world as it is the default greeting from the dashboard of WordPress, a very popular content management system.
The cribriform plate is the name given to a specific area of the human skull. It is part of the ethmoid bone, which is responsible for separating the brain from the nasal cavity.n injury in the region of the cribriform plate requires immediate medical attention. Damage to the cribriform plate may cause loss of smell. The grooved, narrow cribriform plate supports the olfactory bulb. Any type of head injury can cause damage to the cribriform plate.
We will use in the earthworm as our model animal, an Oligochaete (Evolutionary school-subclass, phylogenetic school, not sure), belonging to the class or clade Clitellata, or Annelids with a clitellum, a swelling towards the head of the animal. The other two major clades are the Polychaeta and Echiura.e will be comparing the earthworm to a typicalleech, (Subclass Hirudinea), also a Clitellate. The Hirudinea resemble the oligochaetes in their major habitats (fresh water and land) as well as in lack of parapodia and reduction of specialized head structures that we will find in the Polychaeta.