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

Author Question: Seasonal rhythms are under the control of ________ secreted by cells within the ________. a. ... (Read 23 times)

lracut11

  • Hero Member
  • *****
  • Posts: 536
on: Jun 22, 2018
Seasonal rhythms are under the control of ________ secreted by cells within the ________.
 
  a. melatonin; pineal gland
  b. dopamine; hypothalamus
  c. melanopsin; preoptic hypothalamus
  d. oxytocin; pituitary
  e. melatonin; retina

Question 2

The ticking of a clock cell within the SCN appears to involve
 
  a. feedback loops of intracellular protein production.
  b. the rhythmic opening of sodium channels in the membrane.
  c. interactions between two adjacent clock cells.
  d. the rhythmic opening of calcium channels in the membrane.
  e. the buildup of sodium in the clock cell over time.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Gabe

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: a. melatonin; pineal gland

Answer to Question 2

Answer: a. feedback loops of intracellular protein production.


lracut11

  • Member
  • Posts: 536
Reply 2 on: Jun 22, 2018
Great answer, keep it coming :)

amcvicar

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

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?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Micrographs of nerve cells taken with different types of light microscopes. Micrographs of nerve cells taken with different types of light microscopes.
Feedforward control of breathing rate in an animal trained for athletic exercise. Feedforward control of breathing rate in an animal trained for athletic exercise.
Erythrocytes (red blood cells) moving through a capillary in single file. Erythrocytes (red blood cells) moving through a capillary in single file.
The Social Control of Deviance The Social Control of Deviance
Hormonal control over male and female reproductive hormones. Hormonal control over male and female reproductive hormones.
Experimental evidence that signals from dorsal lip cells initiate amphibian gastrulation. A dorsal l Experimental evidence that signals from dorsal lip cells initiate amphibian gastrulation. A dorsal l
Video: Green alga life cycle Animation

For a complete list of videos, visit our video library