Author Question: At 18 days after conception, this structure becomes visible in the developing embryo; it is the ... (Read 87 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?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Medication errors are three times higher among children and infants than with adults.

For a complete list of videos, visit our video library