29. When a substance is moved from an area of low concentration to an area of high concentration, a energy is needed.
b. cells begin to rupture.
C. diffusion has occurred.
d. mitochondria aren't needed.

What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Which statement best describes a typical difference that could be found between the “analysis” and “conclusion” sections of a lab report?