Who discovered and described diverse protists?
a. Anton van Leeuwenhoek
b. Matthias Schleiden
c. Theodor Schwann
d. Rudolf Virchow
Ans: a. Anton van Leeuwenhoek
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The beginning of the industrial and scientific revolution occurred ____
a. when human population size was approximately one billion b. when human population size was approximately one million c. when human population size was approximately five million d. approximately 500 years ago e. approximately 100 years ago
The term "biotech barnyards" refers to ____
a. the production of human therapeutic proteins by farm animals b. the development of new species of farm animals c. the increased production of milk, egg, wool, etc. d. modern methods of raising more animals on less feed e. the creation of transgenic animals that can produce several products
How are mammographies disadvantageous?
A. They have a low success rate and are incapable of detecting small tumors. B. They involve exposure to radiation, which increases the risk of cancer. C. They cannot detect cysts and fibroadenoma. D. They can detect cancer only in its advanced stages
A base insertion or deletion in the translated region of the gene may lead to
a. missense mutation. b. frameshift mutation. c. nonsense mutation. d. silent mutation.