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

Author Question: Beginning at about age 11, boys develop relatively more _______________. Fill in the blank(s) ... (Read 71 times)

jwb375

  • Hero Member
  • *****
  • Posts: 540
on: Jun 22, 2018
Beginning at about age 11, boys develop relatively more _______________.
 
  Fill in the blank(s) with correct word

Question 2

Describe the function and purpose of the placenta and explain what types of harmful substances can break through the placental barrier and possibly harm the fetus.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dominiqueenicolee

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jun 22, 2018
Answer to Question 1

muscle

Answer to Question 2

Mother and embryo have separate circulatory systems. The pancake-shaped placenta contains a membrane that acts as a filter that permits oxygen and nutrients to reach the embryo from the mother, and permits carbon dioxide and waste products to pass to the mother from the embryo. The mother then eliminates them through her lungs and kidneys. Germs that cause syphilis and German measles and drugs like aspirin, narcotics, alcohol and tranquilizers, can cross the placenta and affect the fetus.


jwb375

  • Member
  • Posts: 540
Reply 2 on: Jun 22, 2018
Wow, this really help

vickyvicksss

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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?

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.

Traniello and his colleagues demonstrated that social insects may develop “social imm Traniello and his colleagues demonstrated that social insects may develop “social imm
Men experience more trauma in their lifetimes, but women are more likely to develop PTSD. Men experience more trauma in their lifetimes, but women are more likely to develop PTSD.
A typical beginning technician tool set that includes the basic tools to get started. A typical beginning technician tool set that includes the basic tools to get started.
A form that the customer should fill out if there is a driveablilty concern to help the service ... A form that the customer should fill out if there is a driveablilty concern to help the service ...
(a) The phagocytic process, beginning in the upper left with bacterial attachment and phagocytic ... (a) The phagocytic process, beginning in the upper left with bacterial attachment and phagocytic ...
Video: Interpreting a cladogram Animation

For a complete list of videos, visit our video library