This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Evaluate the hypothesis that the suprachiasmatic nucleus (SCN) acts as the primary biological clock. ... (Read 73 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
on: Jun 22, 2018
Evaluate the hypothesis that the suprachiasmatic nucleus (SCN) acts as the primary biological clock.
 
  What will be an ideal response?

Question 2

After his penis was destroyed at age 7 months in a botched circumcision procedure, Bruce (the subject of the chapter prologue)
 
  A) then became Brenda.
  B) retained his a male identity.
  C) received regular injections of testosterone from age 15 to 30 .
  D) was given a penile implant at age 5.
  E) received estrogen pills starting at age 5.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

patma1981

  • Sr. Member
  • ****
  • Posts: 292
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: The SCN receives afferent signals from the retina (melanopsin in ganglion cells) that provide the capacity of light signals to reset the clock (zeitgeber function). Damage to the SCN impairs circadian rhythms. Cells within the SCN show reliable changes in neural activity across the day and the night. Transplanted SCN cells placed into the ventricles are sufficient to restore circadian rhythms in hamsters whose own SCN was ablated.

Answer to Question 2

Answer: A


jayhills49

  • Member
  • Posts: 559
Reply 2 on: Jun 22, 2018
Thanks for the timely response, appreciate it

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Primary neurulation Primary neurulation
nucleus nucleus
A historical timeline of regulatory acts, standards, and organizations A historical timeline of regulatory acts, standards, and organizations
Check heat source for temperature. Evaluate the amount of heat given off from the source using your ... Check heat source for temperature. Evaluate the amount of heat given off from the source using your ...
How to evaluate algebraic expressions with given terms How to evaluate algebraic expressions with given terms
Biological control agent: a commercially raised parasitoid wasp about to deposit a fertilized egg in Biological control agent: a commercially raised parasitoid wasp about to deposit a fertilized egg in
Video: Pasteur's Experiment

For a complete list of videos, visit our video library