Open
These kinds of sentences are called run-on sentences. They contain multiple ideas without the correct punctuation to separate them. These can be easily fixed by inserting punctuation.
Elliptical.
They're called emotions :)
It's a caret. It's a caret.
This is not a punctuation mark in standard English. This is more used in note-taking and formal logic. It is used to denote the word "therefore."
The apostrophe is the punctuation mark used to denote contractions, where one or more letters are omitted from several original words.
Opening a new tab. :)
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The tendency of a body to rotate about a fixed or pivote point is called torque.e.g opening and closing of door.
This is so because their opening and closing is determined by their turgidity.
guard cells
Stomatal pores in plants regulate the amount of water and solutes within them by opening and closing their guard cells using osmotic pressure. Guard cells and adjacent subsidiary cells are involved in opening and closing of stomata.
It was used as the opening/closing ceremonies as well as for athletics. Although it wasn't called that in 2000.
It is called a punctuation mark. Punctuation marks are used in writing to help convey meaning and indicate pauses, emphasis, or structure within sentences. Pronunciation marks are not commonly used terminology in language and grammar.
A meningocele repair is a surgical procedure performed to repair an abnormal opening in the spinal column (called spina bifida) by draining excess fluid and closing the opening.
Both the opening and closing ceremonies will be held at National Stadium in Beijing. This stadium is called the Bird's Nest because of it's nest-like shape.
Stomata and lenticells