During which stage of mitosis are chromosomes lined up in the center of the cell?
A. Telophase
B. Anaphase
C. Prophase
D. Metaphase
Answer: D. Metaphase
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Arrange the following levels of geological eras in the correct order. Write the letter of the oldest period
next to 1 and the letter of the newest period next to 10.
A. Triassic B. Permian C. Archaean D. Cretaceous E. Devonian F. Cambrian G. Silurian H. Jurassic I. Ordovician J. Carboniferous 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
By controlling their musculature, which of the following can vary the resistance to blood flow?
a. arteries b. veins c. capillaries d. arterioles e. venules
Hepatitis B virus releases a large amount of viral antigen, which benefits the patient by
A) producing a stronger cellular immune response. B) activating antibody mediated immunity. C) making it easier to develop a vaccine. D) allowing for better treatment. E) ensuring plentiful substrate for binding with labeled antibodies in diagnostic tests.
Which is incorrect about malaria?
A) Merozoites enter and multiply in liver cells B) Trophozoites develop in RBCs C) The mosquito inoculates human blood with sporozoites D) Gametocytes enter the mosquito as she draws a blood meal from a human