Table 3.6 in your textbook uses Paramecium to illustrate several types of light microscopy. Each image is magnified 230X and measures about 4 cm. The actual size of a Paramecium is about ________.
A. 0.2 ?m
B. 4,000 ?m
C. 57.5 ?m
D. 175 ?m
E. 920 ?m
Answer: D
Biology & Microbiology
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Enzymes speed chemical reactions by
A. supplying energy to the reaction process. B. lowering the energy required to start a chemical reaction. C. lowering the amount of reactants that are needed. D. maintaining chemical equilibrium. E. raising the temperature of the surroundings.
Biology & Microbiology
These two species of velvet walking worms are an example of:
1.Allopatric speciation
2.Sympatric speciation
3.parapatric speciation
4.Hardy-Weinberg equilibrium
The letter “A” in the above figure represents
a. sclerenchyma fibers. b. parenchyma. c. xylem. d. epidermis. e. phloem.
Biology & Microbiology
WHAT DOES NATURAL SELECTION RESULT IN
What will be an ideal response?
Biology & Microbiology