12 The ' sequence ', or order of amino acids in a protein is termed its ____________, whereas the 3-dimensional structure of a two proteins interacting with each other is termed its ____________.
13 Other that their pH, how would you differentiate between an acid and a base? Give and example of each?
14 Of the following, which is the first explanation of a problem? It is sometimes called an " educated testable guess."
15 ________ mechanisms are designed to accelerate or enhance the output created by a stimulus that has already been activated.
16 Which element is present in all organic compounds?
17 The instructions for growth, development, metabolism, and reproduction of a cell are contained in:
18 Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime. Homer sprays half of the shower with coconut juice ad he sprays the other half with water. What is the control set-up in this experiment?
19 A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is the independent variable in this experiment?
20 You want to measure the effect of different amounts of oxygen on the rate of yeast growth. What is the dependent variable?