21) A mad scientist has ripped apart an atom and collected all the subatomic particles located in the nucleus of the atom. Which one of the following has he collected? A) electrons B) protons C) protons and neutrons D) electrons and protons

7) Which one of the following is a kingdom? A) Eukarya B) Primates C) Archaea D) Animalia

Which of the following would be the most effective way to assess students who are reading significantly below grade level?

39) There are different types of microscopes that can be used to provide information about cells. Which type of microscope is used for the observation of living cells? A) light microscope B) scanning electron microscope C) transmission electron microscope

What is the value of Area A in Scenario 1?

The first step in RTI is to screen all students. 

How much profits will Manuel make? $[1]

When will firms no longer enter or exit the market? When:

Is the competitive equilibrium efficient? 

16) Which one of the following of the following statements is FALSE? A) Science is a process. B) Scientists use the scientific method to gain knowledge about the natural world. C) Because scientific knowledge is empirical, it cannot be tested. D) Knowledge gained through the scientific method can be used to predict the natural world.