Which kind of evidence studies mineralized bone, footprints, or organisms trapped in amber to determine common ancestry?
fossils
analogous structures
homologous structures
molecular clock

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

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

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f