Multiple Choice
During implantation,
A) the syncytial trophoblast erodes a path through the endometrium.
B) the inner cell mass begins to form the placenta.
C) maternal blood vessels in the endometrium are walled off from the blastocyst.
D) the entire trophoblast becomes syncytial.
E) the inner cell mass is temporarily deprived of nutrients.
Correct Answer:
Verified
Correct Answer:
Verified
Q7: The process of forming a placenta is
Q8: The chorionic villi<br>A) form the umbilical cord.<br>B)
Q9: The umbilical cord contains one umbilical _
Q11: The endoderm forms<br>A) muscle.<br>B) neural tissue.<br>C) blood.<br>D)
Q13: In simple inheritance,<br>A) phenotypic characteristics are determined
Q16: As a person ages,<br>A) hormone levels decrease.<br>B)
Q17: Paired chromosomes are called<br>A) homologous chromosomes.<br>B) heterozygous
Q86: Separation of the inner cell mass from
Q93: Human somatic cells contain _ chromosomes.
Q161: Figure 1.1<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4854/.jpg" alt="Figure 1.1