[Answered] Which hormone helps establish day-night cycles? A) Melatonin B) Dopamine C) Thyroxine D) ...

This topic contains a solution. Click here to go to the answer

Author Question: Which hormone helps establish day-night cycles? A) Melatonin B) Dopamine C) Thyroxine D) ... (Read 57 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

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

Gracias!

nyrave

Member
Posts: 344

Reply 3 on: Yesterday

Excellent

« previous next »

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?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Your heart beats over 36 million times a year.