7. Osmoreceptors are capable of detecting water
concentration and are located on the hypothalamus next to the circulatory system. The
hypothalamus (part of the brain) sends chemical messages to the pituitary gland next to
it. The pituitary gland secretes anti-diuretic hormone (ADH), which targets the kidney
responsible for maintaining water levels. When the hormone reaches the kidney, it alters
the tubules of the kidney to become more/less permeable to water. If more water is
required in the bloodstream, high concentrations of ADH make the tubules more
permeable. If less water is required in the bloodstream, low concentrations of ADH make
the tubules less permeable.

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

One of the reasons that stars are so large is because