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TLS Online TPP Program

#Question id: 11420

We can represent the relationship of species richness to area with the equation


Where S = number of species, and c and z are both constants

Which of the following is not a logical explanation to relationship of species richness to area?

#Unit 10. Ecological Principles
  1. A high value of z indicates steep increases in species number as iland size increases
  2. A low value of z indicates shallow increases in species number as island size increases
  3. One value of z indicates no relation in species number and island size
  4. Tropical islands have greater c values than temperate ones.
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TLS Online TPP Program

#Question id: 34146

#Unit 7. System Physiology – Animal

I. Human pituitary prolactin has considerable structural similarity to human growth hormone and human chorionic somatomammotropin (hCS).
II. Structurally similar prolactin are secreted by the endometrium and by the placenta.
III. prolactin secretion is increased during pregnancy, reaching a peak at the time of parturition.
IV. The human prolactin receptor resembles the oxytocin receptor.
TLS Online TPP Program

#Question id: 34147

#Unit 7. System Physiology – Animal

Which of the following statements not CORRECT regarding the mechanism and reproductive role of prolactin during lactation?
TLS Online TPP Program

#Question id: 34148

#Unit 7. System Physiology – Animal

Assertion (A): Prolactin stimulates the synthesis of casein and lactalbumin during lactation without acting directly on the cell nucleus.
Reason (R): The action of prolactin is dependent on intact microtubules, suggesting involvement of cytoplasmic transport or signaling components.

Choose the correct option:
TLS Online TPP Program

#Question id: 34149

#Unit 7. System Physiology – Animal

A scientist finds that infusion of growth hormone into the median eminence of the hypothalamus in experimental animals inhibits the secretion of growth hormone and concludes that this proves that growth hormone feeds back to inhibit GHRH secretion. Do you accept this conclusion?
TLS Online TPP Program

#Question id: 34150

#Unit 7. System Physiology – Animal

A 7-year-old boy is evaluated for short stature. His average circulating growth hormone level is within the normal range for his age, but levels of IGF-I are reduced. His growth failure is most likely due to a defect in:
TLS Online TPP Program

#Question id: 34151

#Unit 7. System Physiology – Animal

During childbirth, a woman suffers a serious hemorrhage and goes into shock. After she recovers, she displays symptoms of hypopituitarism. Which of the following will not be expected in this patient?