Very urgent! highly appreciate this < 3 question one: what quantity measures the amount of matter in an object? a) volume b) temperature c) mass d) density (i think the answer is density, just check it) question 2: complete this sentence. if volume remains the same while the mass of a substance the density of the substance a) increases, stay the same. b) decreases, stay the same. c) decreases, increase. d) increases, increase.

question one is actually mass, and question 2 is D.

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

it is a learned trait

explanation: