Organisms must maintain which is a balance of internal conditions. homeostasis
osmosis
structure
diffusion

What's the waste product of electrons and pyruvate combining in fermentation?  

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.

Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing