Thomson's contribution to the atomic theory was the discovery that negatively-charged electrons were embedded within a positively-charged "soup". Later on Rutherford performed the gold foil experiment which altered Thomson's contribution. What were the conclusions of Rutherford's Gold Foil Experiment? Group of answer choices a. The atom is made up of mostly empty space with a tiny, dense, positively-charged nucleus. b. The atom is mostly empty space, with negative charge concentrated at the center. c. The atom is mostly empty space, with positive charges spread evenly across it. d. The atom is mostly empty space. No other conclusions could be made.

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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d. groundwater flows through the subsoil and deposits minerals.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.