I WILL GIVE BRAINIEST In an effort to maintain homeostasis, the organ systems of the human body work to keep the body's internal water level constant. Which of the following statements describe how the human body responds when its internal water level drops too low?

A. The skeletal system produces more circulating blood cells that insecure the body’s water intake

B. The excretory system signals the kidneys to retain more water and produce more concentrated urine to decrease water loss.

C. The nervous system signals the muscles to constrict , holding more water in the digestive track and decreasing water loss .

D. The excretory system signals the kidneys to release more water into the bladder to increase water loss .

Forces that are equal in strength but opposite in direction are a.) balanced b.) unbalanced c.) always result in motion d.) do not exist

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a. one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b. one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c. one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.