Basic Tissue Types. All of the various tissues of the human body can be categorized into four basic tissue types. All organs are built of these four tissues, which have consistent characteristics and arrangements from organ to organ. Thus an appreciation of the major features of these four basic tissue types can greatly simplify your understanding of the cellular composition of the many organ systems. 1  OVERVIEW.
Definition of session for English Language Learners : a period of time that is used to do a particular activity : a formal meeting or series of meetings of a group of people (such as a court of law or legislature)
How many days are in the Wisconsin school year?     Wisconsin has a set number of minutes/hours--I don't know what that is (x). Then there are days--a separate issue. (Public) schools must be in session for 175 â¦days, and must include x number of hours. Most public school districts schedule 181+ days, but some take those 181 student days and lengthen them but have fewer days to allow for professional development for teachers.