Use the drop-down menus to select the best answers. This structure can dispose of its lining.
This structure lubricates the vagina.
This structure stores and releases ova.

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 statement best compares aerobic and anaerobic respiration

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear