Why is radioactive dating important when approximating the age of earth? scientists can identify different life forms using index fossil records. scientists can examine how temperature changes within earth’s interior. scientists can determine the order of when rocks formed on earth. scientists can analyze changes in chemical concentration of atmospheric gases.

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 of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?