The agent that causes hepatitis D is a viroid that can only reproduce when the hepatitis B virus is also

present.
____________________ Indicate whether the statement is true or false.


F, satellite

Biology & Microbiology

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Which of the following is the cancer of epithelial cells?

A. sarcoma B. lymphoma C. leukemia D. carcinoma E. myoloma

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Lian, at 12 years old, was barely 3 feet tall. What hormone might she take to grow taller?

A) growth hormone B) calcitonin C) estrogen D) aldosterone

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Without the formulation of an ectoderm, vertebrates would not form

A) a nervous system. B) a liver. C) a pancreas. D) a heart. E) kidneys.

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A medium that is gel-like has less agar in it compared to a solid medium.

Answer the following statement true (T) or false (F)

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