Vitamin A deficiencies are associated with
A. Blindness
B. Poorly developed neural systems in embryos
C. Weak bones
D. A lack of energy, or listlessness
E. Anemia
Answer: A
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If the maximum temperature for a particular day is 26 degrees C and the minimum temperature is 14 degrees C, the daily mean would be ________
40 degrees C 20 degrees C 12 degrees C 13 degrees C
Which of the following photographs depicts an igneous rock where the magma cooled slowly at first and then had fast cooling?
A. 
B. 
C. 
D. 
Presently, the North American and Eurasian plates are moving ________
A) toward each other B) away from each other C) toward the North Pole D) toward the Equator E) nowhere
When DNA is replicated in eukaryotes,
A. a molecule of messenger RNA (mRNA) is constructed using DNA as a template. B. the new molecule of DNA includes the bases A, C, T, and U. C. the new molecule of DNA consists of two newly synthesized strands. D. each new molecule of DNA consists of one old strand and one new strand.