Which of the following questions CANNOT be answered by the scientific method?
a) does taking echinacea reduce the intensity or duration of the common cold?
b) does chemical runoff give rise to hermaphrodite fish?
c) does hair that is shaved grow back coarser?
d) is eyewitness testimony in criminal proceedings reliable?
e) which shakespearean sonnet is the most beautiful?
Ans: e) which shakespearean sonnet is the most beautiful?
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Member of the genus Cytophaga contribute significantly to the process of wastewater treatment.
Answer the following statement true (T) or false (F)
DNA is replicated during
a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase.
The figure is a photomicrograph of
a. a nucleus. b. a Golgi body. c. endoplasmic reticulum. d. a vacuole. e. a nucleoid.
Which of the following statements concerning bacterial growth at low temperatures is not true?
A) Low temperatures slow growth of cells B) Low temperatures reduce the rate of chemical reactions C) Low temperatures decrease the rate at which nutrients cross the cell membrane D) Low temperatures destroy lipids that make up the cell membrane E) Low temperatures reduce the fluidity of the cell membrane