What type of organism is missing from the food chain?

a) an organism that would eat the bear.

b) organisms that would feed off of the flies.

c) organisms that can convert the sun's energy into a useable form of energy.

d) there has to be more than one type of organism at the bottom of the food chain.

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

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans