Which of the following is a pure substance that cannot be broken down by a chemical reaction? -a compound
-a mixture
-an element
-a molecule

10111213141516lactic acid fermentation differs from ethyl alcohol fermentation in thato in ethyl alcohol fermentation co2 is also producedlactic acid fermentation can occur in all living thingsethyl alcohol fermentation can only occur in plantsonly lactic acid fermentation can produce more atp

Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.

In the controversial scientific process of cloning, organisms are created that are genetically identical to there parent. this process would be classified as