Author Question: At 18 days after conception, this structure becomes visible in the developing embryo; it is the ... (Read 60 times)

futuristic

  • Hero Member
  • *****
  • Posts: 638
At 18 days after conception, this structure becomes visible in the developing embryo; it is the neural
 
  A) mesoderm.
  B) tube.
  C) plate.
  D) floor.
  E) crest.

Question 2

By 40 days after conception, three swellings become visible at the anterior end of the human neural tube. The most anterior of these swellings eventually develops into the
 
  A) brain.
  B) midbrain.
  C) hindbrain.
  D) forebrain.
  E) ventricles.



zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

Answer: C

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

For a complete list of videos, visit our video library