This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Irina is in her first week of pregnancy. During this time, __________. A) heart muscles begin to ... (Read 114 times)

Lisaclaire

  • Hero Member
  • *****
  • Posts: 569
on: Jun 22, 2018
Irina is in her first week of pregnancy. During this time, __________.
 
  A) heart muscles begin to develop
  B) the zygote multiplies and forms a blastocyst
  C) a primitive brain and spinal cord appear
  D) the embryo can move

Question 2

The embryonic disk __________.
 
  A) becomes the new organism
  B) is the outer ring of cells on a blastocyst
  C) has a good chance of survival outside the womb
  D) is a protective membrane that surrounds the amnion


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yasmina

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A


Lisaclaire

  • Member
  • Posts: 569
Reply 2 on: Jun 22, 2018
:D TYSM

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

The small intestine. Anterior view of the abdominopelvic cavity illustrating how the three sections The small intestine. Anterior view of the abdominopelvic cavity illustrating how the three sections
Surface of the heart. Surface of the heart.
Under what conditions can part-time employment in high school be a negative influence on school ... Under what conditions can part-time employment in high school be a negative influence on school ...
Men who are at risk for heart disease and report work-related stressors are at greater risk of death ... Men who are at risk for heart disease and report work-related stressors are at greater risk of death ...
Stages of Pregnancy Stages of Pregnancy
Location of fetal heart tones for various fetal positions Location of fetal heart tones for various fetal positions
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library