A diatom is a single-celled organism that is protected by a hard cell wall. Although the diatom has many different functions to perform—reproduction, protection, photosynthesis—all the parts it needs to carry out those tasks are located in one single cell.

Identifying limitations of kinetic-molecular theorya chemist is studying the properties of a gas under various conditions. he observes that when the gas is at room temperature and low pressure, it behaves as an ideal gas. when the gas is cooled to 10 kelvin and is placed under high pressure, however, it deviates significantly from an ideal .

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

How can the periodic table be used to predict the behavior of elements?