Is it true that periods occur as normal after an egg is fertilised

Why is it important that fibrin is insoluble in water?

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

How many chromosomes are in a gold fish?