Magnetosomes are
A. responsible for the heat resistance of endospores.
B. composed of magnetic iron oxide particles.
C. found in all bacteria and some archaea.
D. infoldings of the cell membrane.
E. also termed metachromatic granules.
Answer: B
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In any experiment, changes to the dependent variable based on the manipulations of the independent variable are
measured. When determining the action spectrum of a given plant, what is the independent variable and what is the dependent variable?
a. independent = absorption of light; dependent = wavelength b. independent = wavelength; dependent = absorption of light c. independent = rate of O2 release in photosynthesis; dependent = absorption of light d. independent = wavelength; dependent = rate of O2 release in photosynthesis e. independent = rate of O2 release in photosynthesis; dependent = wavelength
Individual species do not differ in the vitamins, essential amino acids, and fatty acids they require
Indicate whether the statement is true or false.
Which of the following layers and regions comprise the lobes of the kidney?
a. major and minor calyces b. renal capsule and medulla c. renal fascia and pelvis d. cortex and renal pyramids
Comparing DNA sequences from living taxa and calibrating their rates of change with at least one well-dated fossil allows scientists to create time-calibrated trees with minimum and maximum age estimates for all branch points
Such studies are called ________ [two words] studies. Fill in the blank(s) with correct word