A habitat is where a species live
Intestine, Bladder, Stomach, Oesophagus, Bronchi and in the walls of blood vessels. Most of it is found in internal organs expect for the heart because that is cardiac muscle.
Abiotic factor means no living so your answer is water :)
<span>Homologous chromosomes exchange DNA during meiosis in a process called crossing-over. Crossing-over sometimes involves an unequal swapping of DNA. Basically one chromosome in the pair gets extra DNA.</span>