Agroup of biology students tests the growth of bacteria under different conditions. the students apply the same amount of bacteria to identical petri dishes enriched with nutrients, then place each plate at a different temperature. the bacteria are allowed to grow for three days, after which the number of bacterial colonies on each plate is counted. what is the dependent variable in this experiment

Answer is the dependent variable is the amount of bacteria.

To carry out an experiment, two types of variables are used. One is independent variable and other is dependent variable. The variable which is used to test the effect on dependent variable is called an independent variable and the variable which is being tested and measured is called a dependent variable. In the given experiment, the amount of bacteria is dependent variable, which is being tested and measured.  The different temperature is independent variable.

answer; ///i do believe that the correct answer is (b); ///to inform, entertain or persuade an

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.