C. Fenestrated capillaries have intracellular perforations.
He claimed that spontaneous generation could could occur under the right conditions.
Non carbohydrates refers to those food which are not carbohydrates, which means that, these food do not supply energy and one can not possibly grow fat by eating them too much. Examples of non carbohydrate foods are egg, meat, fish, poultry, etc.
Non carbohydrates foods usually play other roles in the human system other than providing energy.
The big bang theory suggests that our universe formed approximately 13.7-13.8 billion years ago.