(a) Based on the data for the groups of cells cultured with 0.1% serum (groups 3

P 16

Explanation:

P 16 does not appear to play a role in blocking cell cycle entry by fibroblast. cyclin dependdent kinase (CDK) promotes cell cycle progression thus inhibitors of CDK inhibit cell cycle. In graph, it has been shown that in absence of p 16 there is no increase in DNA Content but when others are absent ,DNA CONTENT IS MORE.

Being in the exhaustion stage of the General Adaptation Syndrome.

Explanation:

General Adaptation Syndrome refers to the stress an individual may feel in situations and how the individual's body reacts to it.

This syndrome has three phases: the warning phase, the resistance phase and the exhaustion phase.

In the third phase, the Exhaustion phase, there is a psychosomatic reaction to stress that can be considered a defensive failure and the alert is translated into somatic systems causing changes in body tissues. That is, when the individual reaches this phase, the body can not return to the relaxation phase and with it, stress causes physical signals in your body.

Hakeem is in the exhaustion phase as he developed a severe cold due to the extra stress.