How is movement in vertebrates analogous to the movement of a lever?
What will be an ideal response?
ANSWER: The bones connected by movable joints work like levers. Levers are ridged and move
around a pivot point known as a fulcrum. Levers, like joints, differ with respect to where
the fulcrum is located along the lever and where the force is applied. Whether muscles
produce large movements at high speed is dependent on where the fulcrum is relative to
where the force is applied.
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The CRP-cAMP complex binds the lactose operon when:
A. glucose levels and cAMP levels are high. B. glucose levels are high and cAMP levels are low. C. glucose levels are low and cAMP levels are high. D. glucose levels and cAMP levels are low. E. None of these choices are correct.
Most of the carbohydrates eaten by humans are in the form of
a. monosaccharides. b. polysaccharides. c. oligosaccharides. d. disaccharides. e. five carbon sugars
A cell is considered _______ if two of each type of chromosome are present inside the cell.
Fill in the blank(s) with the appropriate word(s).
Diagram and label a cross section of a primary eudicot root. Identify the function of three of the labeled tissues. What will be an ideal response?