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

Author Question: In developed countries, where children receive excellent nutrition and medical care, the average age ... (Read 75 times)

bb

  • Hero Member
  • *****
  • Posts: 544
In developed countries, where children receive excellent nutrition and medical care, the average age of menarche has been falling steadily in what scientists describe as a(n)
 
  A) HPG axis.
  B) set point.
  C) Tanner stage.
  D) secular trend.

Question 2

The triggers for the start of puberty are
 
  A) both genetic and environmental in nature.
  B) entirely genetic in nature.
  C) entirely environmental in nature.
  D) generally not well understood.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Benayers

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

D

Answer to Question 2

A




bb

  • Member
  • Posts: 544
Reply 2 on: Jun 22, 2018
Excellent


chereeb

  • Member
  • Posts: 326
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

For a complete list of videos, visit our video library