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 50 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
:D TYSM

bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Cycles of Sleep and Melatonin Secretion Cycles of Sleep and Melatonin Secretion
Order and Duration of Sleep Stages Through a Typical Night Order and Duration of Sleep Stages Through a Typical Night
Drugs Interacting with Antidiuretic Hormone Drugs Interacting with Antidiuretic Hormone
A funnel helps in hearing if the electric fuel pump inside the gas tank is working. A funnel helps in hearing if the electric fuel pump inside the gas tank is working.
Sheng and Ko cycles. Sheng and Ko cycles.
Hormone Activity Hormone Activity
Video: How to find out if a population is evolving?

For a complete list of videos, visit our video library