The correct answer is option A , sensory system.
A human body primarily consists of the following organ systems :
Circulatory, Respiratory, Digestive, Excretory, Nervous and Endocrine systems, Immune, Integumentary, Skeletal, Muscle and Reproductive systems.
There is no as such sensory system. However the neurology based system is called Nervous system which includes organs and their processing in the sensing of stimulation.
DNA is bound together by covalent bonds between different molecules. It also contains proteins, which again are held together in their specific structures by covalent bonds.
Covalent bonds may be broken when high temperatures are applied. The temperatures that a food encounters during the cooking cause the DNA to be denatured, meaning it cannot be extracted. The same occurs with other proteins such as enzymes and antibodies.
If the son is normal, then he's XHY. That means that he got his Y from dad and his XH from his mother. The daughter IS hemophiliac, meaning that she's XhXh. So she must have gotten one Xh from each parent, thereby making the father XhY (he has hemophilia) and the mother XHXh (she is only a carrier).
There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves. P waves cause the ground to compress and expand, that is, to move back and forth, in the direction of travel.