Which answer correctly compares the krebs cycle and the electron transport chain?
a: both are aerobic and focus on breaking down organic molecules.
b: both occur in the mitochondria and result in producing more atp.
c: both are anaerobic and occur inside the mitochondria.
d: both occur in the cytoplasm and result in producing more atp.

B: Both occur in the mitochondria and result in producing more ATP.

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.