During implantation, the trophoblast divides into a deep layer called the ________, which is composed of individual cells.
A. amnion
B. cytotrophoblast
C. chorion
D. syncytiotrophoblast
E. embryoblast
Answer: B
Anatomy & Physiology
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A/an __________ is a cat with three colors of fur and is usually female
Fill in the blank(s) with correct word
Anatomy & Physiology
Which of the following vitamins is needed to promote muscle growth, and may reduce the risk of Parkinson's disease?
A) Vitamin K B) Vitamin E C) Vitamin C D) Vitamin D
Anatomy & Physiology
This figure shows the humerus. What is the feature indicated by number 6?
A. Capitulum B. Trochlea C. Head D. Medial condyle E. Lateral condyle
Anatomy & Physiology
Which of the following would not be a possible cause of sickling of red blood cells in someone with sickle-cell anemia?
A) malaria B) vigorous exercise C) prolonged exposure to cold D) travel at high altitude
Anatomy & Physiology