Protozoans are singled-celled organisms with a nucleus, cell membrane, and and membrane-bound organelles. Therefore, protozoans are:

Platinum-based drugs are very effective at treating cancer, but they are also very toxic to non-cancerous cells as well. A recent study showed that platinum-based drugs affected the structure of the nucleus. Specifically, a region within the nucleus known as the nucleolus was damaged by these drugs.  This is noteworthy because the nucleolus is the area where the parts of ribosomes are made.  What process would be directly disrupted by the failure to make ribosomes? 

What type of antimicrobial agent can kill bacterial cells by targeting the lipids that make up the cell membrane?

Simplify the trigonometric expression by following the indicated direction.Multiply and simplify: 1.

In the following you will see 4 survey questions. Answer the following questions about them: Identify what kind of data each of the following survey questions gathers (categorical, ordinal, continuous) and briefly explain your reasoning based on the characteristics of each data type. What methods would you use to summarize this type of data? Methods to choose from are:  count, mode, mean, standard deviation (clearly address which survey question you are answering. for instance, survey question1: , etc)     survey question 1 – on a 7-point scale (1=not satisfied and 7=very satisfied), how do you rate your satisfaction   survey question 2 – How often do you take a trip in your car that’s 100 miles or more?___ less than once month___ 1-2 times a month___ 3-5 times a month___ more than 5 times a month   survey question 3 – What is your auto insurance company? ______________________________ survey question 4 – what is your age? Provide a number.

The compound RX 3 decomposes according to the equation     3RX 3 → R + R 2X 3 + 3X 2In an experiment the following data were collected for the decomposition at 100°C. What is the average rate at which RX 3 is disappearing over the entire experiment?        t(s) (mol L –1)  0 0.85 2 0.67 6 0.41 8 0.33 12 0.20 14 0.16

For the reaction     2A + B + 2C → D + Ethe following initial rate data were collected at constant temperature. Determine the correct rate law for this reaction. All units are arbitrary. TrialRate10.2250.1500.3500.021720.3200.1500.3500.043930.2250.2500.3500.036240.2250.1500.600  0.01270

A 0.100  m MgSO 4 solution has a freezing point of –0.23°C. What is the van’t Hoff factor for this solution?  K f = 1.86°C/ m

Isoamyl salicylate (M = 208.25 g/mol) has a pleasant aroma and is used in perfumes and soaps. Which of the following combinations gives a 0.75 m solution of isoamyl salicylate in ethyl alcohol (d = 0.7893 g/mL)?

________ is the degree to which a test produces consistent and repeatable results.