Agenetic change that caused a certain hox gene to be expressed along the tip of a vertebrate limb bud instead of farther back make possible the evolution of the tetrapod limb. this type of change is illustrative of

Using the periodic table, determine which material is most likely a good conductor

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water