5. What is this passage mostly about?
A silk production and the revival of the silk industry
B how the silk industry improved the Thai economy
C the mysterious disappearance of Jim Thompson
D the argument of animal activists against silk production

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.

What are potential sources of error in marta’s experiment