(02.06 MC) Nitrogen is naturally abundant in the atmosphere. Why are nitrogen fertilizers added to soil, despite the dangers they produce when they enter aquatic ecosystems? (3 points)

(01.01 MC) In order to understand the impact of climate change, a scientist collected measurements of average yearly sea surface temperatures from 1880 to 2012. His data is graphed below. How has average ocean temperature changed in the period from 1980 to 2010? (3 points) © 2016 NOAA

(02.01 HC) The North American Plate is moving away from the Eurasian Plate, forming the Mid-Atlantic Ridge. Iceland offers a natural laboratory to scientists studying plate tectonics. Using what you know about plate tectonics, predict what boundary zone is occurring and two resulting features from the choices below. (3 points) © 2016 US Department of the Interior; US Geological Survey

Name a type of simple stain. 

It is okay to apply chap stick while in the lab. 

(02.04 LC) Severe weather forms when certain physical factors are present and interact. A tropical cyclone forms when warm, moist air, and wind combine with which of the following other factors? (3 points)

(01.01 LC) Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. But in 1938, a live coelacanth was discovered off the coast of South Africa. What characteristic of science does this discovery represent? (3 points)

Why does the Gram stain not work with Mycobacterium species? 

The purpose of doing a serial dilution is 

In a petri dish with 430 colonies, it would be recorded as