The bird in the photo is resting on the bison to cross the river. It's also utilizing the bison as a safety place for any alligators or other predators. Look at that bird just chilling! Now the bison is totally unaffected. He isn't being hurt or gaining something from the bird. What type of symbiotic relationship does this exemplify

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

Amouse that is homozygous for the dominant trait has the genotype . it has . a mouse that is homozygous for the recessive trait has the genotype . it has . image of fur color of mice

How can you tell the difference between rough er from smooth er?