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

Author Question: Which hormone helps establish day-night cycles? A) Melatonin B) Dopamine C) Thyroxine D) ... (Read 18 times)

Jipu 123

  • Hero Member
  • *****
  • Posts: 569
on: Jul 3, 2018
Which hormone helps establish day-night cycles?
 
  A) Melatonin B) Dopamine C) Thyroxine D) Norepinephrine

Question 2

The relatively diffuse collection of phagocytic cells throughout the body is called what?
 
  A) Monocyte-macrophage system B) Reticuloendothelial system
  C) Phagocytic system D) Both A and B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

olivia_paige29

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 3, 2018
Answer to Question 1

A

Answer to Question 2

D


Jipu 123

  • Member
  • Posts: 569
Reply 2 on: Jul 3, 2018
Great answer, keep it coming :)

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Melatonin and sleep Melatonin and sleep
Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th
Hormone and Hormone Antagonists Used for Neoplasia Hormone and Hormone Antagonists Used for Neoplasia
Sex Hormone Products Sex Hormone Products
Orbital Cycles Orbital Cycles
Roy Orbison - I Drove All Night (Official Video) Roy Orbison - I Drove All Night (Official Video)
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

For a complete list of videos, visit our video library