A movement that reinforces a verbal message is a gesture.
I believe this an example of complex sentence structure.
My reasoning is that most of these sentences are in fact compound complex sentences-
Compound-complex sentences contain two independent clauses and at least one dependent clause.
An example of a complex sentence is this: “I burned dinner but not the cake.”
Mumble is an emperor penguin (i believe) that has a disorder that affects the shedding of his Down (the soft feathers that the young usually have)
Answer:
If the assignment does not have a date listed, the assignment is open; you can submit the assignment at any time during your course. If the assignment says Available until [date], you can submit the assignment until the specified date.
