« previous next »

Author Question: The yolk sac __________. A) forms during the third trimester of pregnancy B) is the outer ring ... (Read 88 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?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

tree-ring data tree-ring data
Two general models for the interconversion of inactive and active forms of a protein during cooperat Two general models for the interconversion of inactive and active forms of a protein during cooperat
DNA Ring DNA Ring
Major psychosocial changes during pregnancy Major psychosocial changes during pregnancy
Infant formula is available in several forms and varies in cost and ingredients Infant formula is available in several forms and varies in cost and ingredients
Mass Wasting Forms Mass Wasting Forms
Video: Bone Healing Animation

For a complete list of videos, visit our video library