Next Fluids and the Formation of Earth's Features: Mastery Test
Drag each label to the correct location. The labels can be used more than once.
Match each statement with the type of weathering it describes.
chemical
weathering
mechanical
weathering
Weathering is caused by precipitation reacting
with minerals in the rock
Weathering is caused by freezing and thawing
of water.
Weathering creates new substances, such as
clay and salts.
Weathering is caused by the movement of
agents such as glaciers and wind. It is
accelerated by increases in velocity.
Weathering is caused by processes such as
corrosion, hydrolysis, and dissolution. It is
accelerated by increases in temperature.

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

What are two examples of conduction that we use everyday