4.  Which of the following statements is true when referring to fixed costs?  

16.  Sunnripe Corporation manufactures and sells two types of beach towels, standard and deluxe. Sunnripe expects the following operating results next year:       Standard Deluxe   Total sales $ 450,000   $ 50,000   Total variable expenses $ 360,000   $ 20,000     Sunnripe expects to have a total of $57,600 in fixed expenses next year. What is Sunnripe’s overall break-even point next year in sales dollars?  

Assume that and .  Find for the function when ,

For   : (a) Use implicit differentiation to find for   (b) Evaluate at (1,2). You do NOT need to write notation with this answer.

Which of the following processes directly contributes the energy required to pump protons across the cell membrane of a bacterial cell during cell respiration?

From the dropdowns, choose the type of horizontal gene transfer that best applies to each statement below. The only type of transfer in which bacteria physically connect with each other [v1] Involves transfer of genetic material via a virus [v2] Is used during gene cloning to introduce a plasmid to a bacteria [v3] Can involve the transfer of either an F factor or an Hfr factor through a pilus [v4] Sometimes requires a special membrane receptor to take up DNA from the environment [v5]

Use the derived characteristic chart to fill in missing parts of the cladogram.   What derived characteristic would separate organism B and C?  (the grey x).  

What is the name of these protists ? 

Identify this protist. 

Humans have a taibone, but no tail.  This is a example of a _______________ structure.