Comparison of mitosis and cytokinesis in animal versus plant cells reveals ____
a. sister chromatids are identical in animal cells, but they differ from one another in plants
b. a cleavage furrow is initiated in an animal cell, while a cell plate begins to form in plant
cells during telophase
c. in animal cells, chromosomes do not become attached to the spindle until anaphase,
whereas chromosomes become attached to the spindle at prophase in plant cells
d. the nuclear envelope disintegrates in prophase in animal cells, but remains intact in plant
cells
e. There are no differences between animal and plant cells.
B
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Which type of media is designed to support the growth of one group of organisms, but not another, by containing antimicrobials, dyes, or alcohol?
a. Selective b. Nutritive c. Differential d. Definitive
What is the source of CO2 released into the atmosphere?
A. Volcanic activity B. Anaerobic microbial activity C. Respiration D. Fuel combustion E. All of the above.
The responsible management (use and conservation) of the earth's resources indefinitely is called ________.
A. the maximum sustainable yield B. landscape ecology C. sustainable development D. carrying capacity
The biosynthetic pathway for chlorophyll includes approximately how many steps?
A. 3 B. 6 C. 10 D. 17 E. 40