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

Author Question: What regulates the menstrual cycle? a. phases of the month that coincide with lunar phases b. ... (Read 102 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
on: Jun 22, 2018
What regulates the menstrual cycle?
 
  a. phases of the month that coincide with lunar phases
  b. increases and decreases in estrogen and progesterone levels
  c. the presence or absence of androgens
  d. none of these

Question 2

What is the earliest age that a rudimentary knowledge of object permanence has been found?
 
  a. 6 months c. 8 months
  b. 4 months d. 12 months


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tanna.moeller

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jun 22, 2018
Answer to Question 1

B

Answer to Question 2

B


imowrer

  • Hero Member
  • *****
  • Posts: 514
Reply #2 on: Jun 22, 2018
Thank you


tanna.moeller

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jun 22, 2018
No problem :)


« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Leaf structure and its relationship to the C4 cycle Leaf structure and its relationship to the C4 cycle
Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the
Cell cycle Cell cycle
Cardiac cycle Cardiac cycle
The Hotair long noncoding RNA regulates chromatin The Hotair long noncoding RNA regulates chromatin
Life cycle of Pisum sativum Life cycle of Pisum sativum
Video: EpiPen Animation (Part 1)

For a complete list of videos, visit our video library