Organisms And Population Question 1
Question: Thymus and brain are the main factors in the ageing
Options:
A) Stress theory
B) Gene theory
C) Pacemaker theory
D) Mutation theory
Show Answer
Answer:
Correct Answer: C
Solution:
Immunological (Thymus) & neuroendocrine (Brain) control theories of ageing are collectively called a pace-maker theory of ageing.