The inner cell mass of the blastocyst
A. contains cells that will form the embryo.
B. contains cells that are discarded.
C. consists of yolk-filled storage cells.
D. represents the future placenta.
E. will form the zona pellucida.
Answer: A
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Which body feature do ultramarathon runners count on to give their muscles fuel for endurance?
A. Richer blood supply B. Stronger long bones C. Toned ligaments and tendons D. Healthy cartilage
B-cells
A. mature in the thymus. B. are responsible for forming all the body's memory cells. C. when activated become plasma cells and produce antibodies. D. are a subset of T cells. E. suppress the activity of T cells.
Which of the following is a recognized function of skeletal muscle?
A) produce movement B) maintain posture C) maintain body temperature D) guard body entrances and exits E) All of the answers are correct.
When a person is experiencing an asthma attack, his/her FEV1 would be ________(higher or lower?) than normal
Fill in the blank(s) with correct word