The number of which subatomic particle designates the atomic number of an element?
A) electrons
B) neutrons
C) protons
D) protons plus neutrons
C
Biology & Microbiology
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Although Sulfolobus solfataricus grows at pH 2 to 4, it maintains a cytoplasmic pH of about 2, thereby generating a large pH gradient across the plasma membrane.
Answer the following statement true (T) or false (F)
Biology & Microbiology
Sclereids are found in
a. root tips. b. seed coats. c. mesophyll cells that produce food. d. cortex cells that store food. e. epidermal cells
Biology & Microbiology
Muscles produce and resist movement
Indicate whether the statement is true or false
Biology & Microbiology
Broccoli, cabbages, and Brussels sprouts all descend from the same wild mustard and can still interbreed. These varieties were produced by
A) artificial selection. B) natural selection. C) genetic drift. D) inheritance of acquired characteristics.
Biology & Microbiology