« previous next »

Author Question: The yolk sac __________. A) forms during the third trimester of pregnancy B) is the outer ring ... (Read 89 times)

bobypop

  • Hero Member
  • *****
  • Posts: 539
on: Jun 22, 2018
The yolk sac __________.
 
  A) forms during the third trimester of pregnancy
  B) is the outer ring of cells that surrounds the blastocyst
  C) produces blood cells until the organs are mature enough to take over this function
  D) contains one large vein that delivers blood loaded with nutrients and two arteries that remove waste

Question 2

The amniotic fluid __________.
 
  A) delivers food and oxygen to the developing organism
  B) helps keep the temperature of the prenatal world constant
  C) delivers nutrients and removes waste products
  D) produces blood cells until the organs are mature enough to take over this function


ciecieme

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
The formation of a chimeric gene that is found in people with certain forms of leukemia. The formation of a chimeric gene that is found in people with certain forms of leukemia.
Forms of Sexual Misconduct Cont Forms of Sexual Misconduct Cont
Structures of the ionized forms of some representative fatty acids (part 2) Structures of the ionized forms of some representative fatty acids (part 2)
Life Cycle Nutrition: Pregnancy through Infancy Life Cycle Nutrition: Pregnancy through Infancy
How urine forms. How urine forms.
How Rh differences can complicate pregnancy. How Rh differences can complicate pregnancy.
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library