Author: Anonymous

You discovered a single-celled organism found in the swampy canals. After measuring you have determined ion concentrations and listed them below.   [ ] in mOsm/L Cell Swamp K+ 120 12 Na+ 17 136 Ca++ 0.05 10 a) Use the Nernst equation 61/z × log [ion]out / [ion] in to calculate the equilibrium potential for Na+, K+, and Ca2+. (9pts)   b) Using intracellular electrodes to measure the electrical charge inside the cell, you found it has a resting membrane potential of -75 mV. Based on your calculations, explain the cell membrane is most permeable to what ion when the cell stays in the resting membrane potential. (2pts)  

Compare the large with the small receptive fields. Choose the correct statement.

Associate the brain area with its main function. Choose the correct.

Which area is NOT normally considered to be an autonomic control center?

A. What is anaerobic digestion? For what purposes is this usually applied? B. What is Renewable Natural Gas (RNG)? C. What are the two factors limiting the uptake of compressed natural gas as a transportation fuel?  

      Directions   Earlier in this unit you were asked to respond to four prompts about what you would learn in this unit.  Now that the unit is coming to an end, you will revisit those prompts by answering ONE of the following questions. Your answer should include a response, 2 – 3 examples of evidence and an explanation of how your understanding has changed since this unit started.  You may want to revisit your submissions from the earlier assignment to see how your views have changed. These are heavy paragraphs because of evidence and REFLECTION on your previous view at the start of Era 1 (1.0B). Look at your homework to support your answer.  Your answer is ONE paragraph that is 5-7 sentences long.  Why begin a course in human history before humans existed? In what ways can using a “frame” help us develop a more meaningful understanding of history? How might physical, geographic, and biological contexts impact human lives and history?

In the taxonomic heirarchy, order is to family like phylum is to _____________ .

Which of the following mechanisms of evolution is non-random:

Usually as a country’s affluence and technology increase, its impact on the environment _____________.

On a population growth curve, the slope of the line represents the: