Was the United States involved in the World War 1 when it first started?

When the blood leaves the atria (upper chambers) where does it flow to? a. aorta b. lungs c. ventricles d. rest of the body

20 pts i don't really get this xd1. what is the function in humans of the protein produced from that gene2. would you expect to find the same protein in other organisms? if so, which ones? 3. is it possible to find the same gene in two diff. kinds of organisms4. if you found the same gene in all organisms you test, what does this esuggest about the evolution of this gene in the history of life on earth? 5. does the use of dna sequences in the study of evolutionary relationships mean that other characteristics are unimportant in such studies? explain your answer. what am i supposed to do here

Which of the following is not an example of homeostasis? a) perspiring in order to restore normal body temperature b) feeling hungry and eating to restore the level of blood glucose to normal c) feeling hungry at the sight of appetizing food d) quenching thirst and drinking water to hydrate the body e) all of the above are examples of homeostasis