Vocabulary and grammar. which sentence contains three common nouns?
a. she has never upset an object or as much as brushed a magazine onto the floor.
b. they made a romantic pair all right, especially in the blindfold sequence.
c. they bought their tickets and surrendered them in anticipation.
d. the white arabians of ali-khazar rose on their hind legs and waltzed.

Which statement from the tinker v. does moines court decision best supports the reasoning that the conduct of the student protesters was within the protection of the free speech clause of the first amendment

Arrange the sentences below to form a logical paragraph.an experienced rock climber knows that it takes a combination of knowledge and preparation to perform a successful climb.a successful climb begins with a proper foothold, carefully placing each foot on a ledge or crack then reaching for a solid hold, and finally pushing off.in addition to a proper foothold, a climber must be careful to check the integrity of the rock before stepping because it has to be solid clear through.a veteran climber judges the integrity of the rock and chooses not to climb on conglomerates, packed clay with lots of little rocks.but, such knowledge of rock is not the only preparation a skilled climber needs; equally important is the correct equipment.with these tools, knowledge of rock composition and equipment safety, a climber may experience many safe and enjoyable climbs.

What is a mechanism by which organisms maintain homeostasis when the level of one substance influences the level of another substance or the activity of an organ.