What energy source was used by Stanley Miller in his 1953 experiment to replicate the Earth's early environment?

A. ultraviolet radiation
B. sunlight
C. gamma radiation
D. heat
E. electric spark


Answer: E

Biology & Microbiology

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What is the maximum number of electrons in the first energy shell of an atom?

A. 8 B. 32 C. 4 D. 2 E. 18

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Hemophilia results from a deficiency in

A. platelets, and results in normal bleeding. B. fibrin, and results in abnormal bleeding. C. plasma, and results in abnormal bleeding. D. collagen, and results in normal bleeding. E. clotting factor VIII, and results in abnormal bleeding.

Biology & Microbiology

Four of the five answers listed below are

related by a common quality. Select the EXCEPTION.

a. urethra b. testis c. ejaculatory duct d. vas deferens e. epididymis

Biology & Microbiology

Which of the following hormones is NOT

produced by either lobe of the pituitary gland?

a. prolactin b. oxytocin c. calcitonin d. ACTH e. GH

Biology & Microbiology