Which structure is used for excretion and

reproduction?
a. A
b. B
c. C
d. D
e. none of these


Answer: d

Biology & Microbiology

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Which of these statements is false concerning

covalent bonds? a. Atoms share electrons. b. Molecules may possess many covalent bonds. c. Water contains polar covalent bonds. d. Covalent bonds may be “double bonds.” e. In polar covalent bonds, electrons are shared equally.

Biology & Microbiology

Stratified squamous epithelium is tissue that can take a lot of physical wear and tear, but compared with some other tissues, it does not absorb water-soluble materials well

Which of the following organs is least likely to be lined by this type of tissue? A) mouth B) esophagus C) small intestine D) anus

Biology & Microbiology

A person responds to touching a hot pan by pulling his hand away before he feels pain. Why does it take longer for him to feel pain?

What will be an ideal response?

Biology & Microbiology

Epstein-Barr virus has the following characteristics, except

A. it is transmitted by direct oral contact and saliva. B. it infects the respiratory epithelium. C. it can be transmitted by contaminated blood transfusions and organ transplants. D. it has a 30-50 day incubation. E. it multiplies and is latent in the parotid gland.

Biology & Microbiology