Answer: grams
Explanation: gram ( ) The basic unit of mass in the metric system, equal to 1,000 grams (2.2 pounds). See Table at measurement. See Note at weight. metric system A decimal system of weights and measures based on the meter as a unit of length, the kilogram as a unit of mass, and the liter as a unit of volume.
It receives blood from the whole body. Blood from the lungs enters the heart through the pulmonary vein into the left atrium. ... - Has ventricles that has thicker walls thus more muscular than auricles generating higher pressure to pump blood over long distances.
False, because a niche is how one animal uses its habitat- many animals use many different niches