When does the fetal heart begin to beat?
A) Day 12
B) Day 22
C) 8 weeks
D) 20 weeks
Correct Answer:
Verified
Q1: Which portion of the blastocyst fuses with
Q2: Blood returns to the fetus from the
Q3: What are the germ layers, and from
Q5: How many chromosomes does a zygote have?
A)
Q6: What is the name of the blackberry-like
Q7: The stage of development that begins at
Q8: Implantation typically occurs approximately
A) 3 days after
Q9: What role is served by the ductus
Q10: Most of the organs are developed during
Q11: If the ductus arteriosus fails to close
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents