How can evolution select for phenotypes that postpone reproduction or sexual maturity?” There is often a trade-off between reproduction and maintenance, and in many species reproduction and senescence are closely linked. Recent studies of mice, Caenorhabditis elegans, and Drosophila suggest that there is a conserved genetic pathway that regulates aging and that it can indeed be selected for. This pathway involves the response to insulin and insulin-like growth factors, Name of these transcription factors are

TLS Online TPP Program

#Question id: 16309

#Unit 7. System Physiology – Animal

Which of the following statements correctly describe the reason of heat stroke.

TLS Online TPP Program

#Question id: 16310

#Unit 7. System Physiology – Animal

The temperature of the body is regulated almost entirely by nervous feedback mechanisms, and almost all these mechanisms operate through temperature regulating centers located in the hypothalamus. Following statements are as follows:

A. The anterior hypothalamic-preoptic area contains large numbers of heat-sensitive neurons, as well as about one third as many cold-sensitive neurons. These neurons are believed to function as temperature sensors for controlling body temperature.

B. The heat-sensitive neurons increase their firing rate 2- to 10-fold in response to a 10°C increase in body temperature. 

C. The cold-sensitive neurons, by contrast, increase their firing rate when the body temperature increases.

D. Anterior hypothalamus integrates the central and peripheral temperature sensory signals.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 16311

#Unit 7. System Physiology – Animal

What is stress?

TLS Online TPP Program

#Question id: 16312

#Unit 7. System Physiology – Animal

Any situation that is out of the ordinary, known as:

TLS Online TPP Program

#Question id: 16313

#Unit 7. System Physiology – Animal

Stress in small amounts:

TLS Online TPP Program

#Question id: 16314

#Unit 7. System Physiology – Animal

What is Stress response?