During exercise, metabolism increases in our cells. This will increase the CO2 gas in our blood which will cause low pH (acidic medium). Brain cells are stimulated by this drop in pH and send signals to diaphragm and respiratory system to stimulate respiration. What is the type of feedback? Explain your answer

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur