2. What is the step or steps that make or break the results in this procedure? This could include how accurately you measure the circumference or the number of times you repeat the measurements.

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Isotopes of the same element have differ in their