This is for Sex-Ed. Please Help!

Sammi is studying the interaction of the digestive and circulatory systems in the human body. she has listed various processes that occur in each of the systems. put the processes in order to describe the interaction between these two systems. tiles nutrients diffuse through the villi of the small intestine.digestive processes break nutrients down in the mouth, stomach, and small intestine.blood is pumped through the circulatory system to deliver nutrients to other organs.nutrients are ingested at the mouth.nutrients enter the capillaries of the circulatory system. sequence

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last