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Author Question: The respiratory and digestive systems in the embryo develop from the A) ectoderm of the embryonic ... (Read 81 times)

pane00

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on: Jun 22, 2018
The respiratory and digestive systems in the embryo develop from the
 
  A) ectoderm of the embryonic disk.
  B) mesoderm of the embryonic disk.
  C) endoderm of the embryonic disk.
  D) neural tube.

Question 2

Approximately how many teenage girls between the ages of 15 and 19 become pregnant during the year of 2010?
 
  A) about 100,000
  B) about 300,000
  C) about 700,000
  D) about 1,000,000


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kmb352

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Reply #1 on: Jun 22, 2018
Answer to Question 1

C

Answer to Question 2

C


pane00

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Reply 2 on: Jun 22, 2018
Thanks for the timely response, appreciate it

tuate

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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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).

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