Stanford researchers discovered how plant cells decide whether to form breathing pores based on size and neighbor signals.

This stoma is an opening or pore that is used for gas exchange. They are mostly found on the under-surface of plant leaves. Air also enters the plant through these openings.

All tree leaves have an outer layer called the epidermis, which can also be used in the identification process. This leaf "skin" always has a waxy cover called the cuticle and varies in thickness.

5 fast facts about the heart The heart of an average adult beats more than 100,000 times per day. A woman's heart beats faster than a man's by about eight beats per minute, on average. The rhythm ...

One of cinema's greatest courtroom dramas, Anatomy of a Murder is tense, thought-provoking, and brilliantly acted, with great performances from James Stewart and George C. Scott. Read Critics Reviews ...

Dean DeBlois narrates a sequence from the live-action film featuring Mason Thames. By Mekado Murphy ‘The Life of Chuck’ | Anatomy of a Scene Mike Flanagan narrates a sequence from his film ...

Documentation: Documentation should include the reason for catheterization, date and time, catheter type (material and size), volume of water used to inflate the balloon, use of lidocaine, any ...