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

Author Question: At the beginning of the twentieth century, the average American girl began to show signs of puberty ... (Read 84 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
At the beginning of the twentieth century, the average American girl began to show signs of puberty by around age
 
  a. 6
  b. 8
  c. 10
  d. 13
  e. 15

Question 2

The part of the eye that changes shape to adjust for an object's distance is the
 
  a. lens.
  b. pupil.
  c. cornea.
  d. retina. e. iris.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

deja

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

e

Answer to Question 2

a




penza

  • Member
  • Posts: 1,022
Reply 2 on: Jun 19, 2018
Gracias!


kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

For a complete list of videos, visit our video library