Which human trait shows a continuous variation?
a. Cystic fibrosis
b. Marfan syndrome
c. Eye color
d. Blood type
e. Sickle cell anemia
c
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A teratogen is a drug that:a
increases fertility. b. prevents fertilization. c. prevents implantation of the embryo in the endometrium. d. induces labor. e. interferes with morphogenesis.
Single-celled organisms having cell walls and no nucleus are found in the Domain(s)
A. Eucarya. B. Eucarya and Bacteria. C. Bacteria and Archaea. D. Eucarya and Archaea.
Silicobacter pomeroyi produces carbon monoxide dehydrogenases so that it can use carbon monoxide as a source of carbon.
Answer the following statement true (T) or false (F)
Which of the following statements about leprosy is FALSE?
A) It is rarely fatal. B) Patients with leprosy must be isolated. C) It is transmitted by direct contact. D) Diagnosis is based on skin biopsy. E) The etiologic agent is acid-fast.