What is the main function of the krebs cycle? a. to produce large numbers of atp molecules b. to break glucose down into two pyruvate molecules c. to provide molecules for the electron transport chain d. to produce carbon dioxide for use in the thylakoid

After which event could you say that evolution has occurred? question 1 options: an allele frequency changes in a population. a white-eyed fly is born into a population of brown-eyed flies. a new predator comes into an environment. an animal gets fat.

Which of the following would be least likely to support the modern concept of biological evolution? ( 2 points) a)different species of organisms with similar bone patterns b)different species of organisms with similar reproductive rates species in c)different domains with similar metabolic pathways species in d)different kingdoms with similar cellular structures.

What best explains the inability for life to exist in earth early atmosphere