Answer:
The nucleus.
Explanation:
The nucleus functions like the brain in humans.
Answer: D, a pedigree.
Explanation:
Pedigrees are used to analyze the pattern of inheritance of a particular trait throughout a family.
The right option is Tuberculosis
Tuberculosis is a contagious, airborne
disease of the lungs caused by the bacterium; Mycobacterium tuberculosis. The
bacteria is released from the lungs into the air when an infected person sneezes,
spits, or cough and this makes the disease highly contagious as it can be easily
transmitted to others.
