What phase does the nuclear membrane and nucleolus disappear?
What will be an ideal response?
Prophase I
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In eukaryotic cells, the oxidation of pyruvate occurs in:
A. the cytoplasm. B. the nucleus. C. the matrix of the mitochondria. D. the endoplasmic reticulum. E. vacuoles.
Mycorrhizae are formed by the association of plants with ________.
A. cyanobacteria B. fungi C. algae D. actinomycetes
Why are fall and spring temperatures colder in deeper areas of lakes than they are in the winter?
A) Air temperatures are colder in the fall and spring. B) There is a lag in time for the cold water to reach these depths. C) Aquatic animals are more active in the winter. D) Lake stratification causes colder water to sink in spring and fall.
The functional group at the end of a fatty acid has the following formula
A. —COOR. B. —COOH. C. —COON. D. CH2O.