Mycoplasmas differ from other bacteria in that they
A) grow inside host cells.
B) lack a cell wall.
C) are acid-fast.
D) are motile.
E) are gram-negative.
B
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When a drop of food coloring is placed in a container of clear water, the colored dye molecules ____
a. undergo osmosis to a different location b. undergo active transport to a different location c. diffuse to the top of the container d. diffuse equally throughout the container e. stay at the bottom of the container
In phototropism, shoots respond to ___ light
a. red b. green c. yellow d. blue e. ultra-violet
An ectotherm requires more calories per gram of body mass than an endotherm of similar size
Indicate whether the statement is true or false
The sex-determining chromosomes of a human male are the
A) Z and Z chromosomes. B) Y and Z chromosomes. C) X and Y chromosomes. D) Y and Y chromosomes. E) X and X chromosomes.