The division of a bacterial cell occurs as the:
A. cell wall develops cracks around the equator of the cell.
B. chromosomes are pulled toward the ends of the cell.
C. actin and microtubules constrict the cytoplasm.
D. new membrane and cell wall materials begin to grow and form a septum.
D. new membrane and cell wall materials begin to grow and form a septum.
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Fin whales feed mostly on:
a. benthic invertebrates. b. nektonic fishes. c. algae. d. krill. e. detritus.
The separation of homologous chromosomes during meiosis so that gametes receive a haploid set of chromosomes is
____________________. Fill in the blank(s) with the appropriate word(s).
All of the following are components associated with bacterial cytoskeletons except
A) FtsZ. B) MreB. C) plectin. D) crescentin. E) A, B, C, and D are associated with the bacterial cytoskeletons.
Certain plants have been genetically modified to secrete citrate, which helps
A. make the phosphate in soils more soluble. B. plants make necessary micronutrients. C. reveal mineral deficiencies in a plant. D. make hydroponic growth possible. E. plants add metals to the soil in which they are growing.