The separation of homologous chromosomes is called
A. synapsis.
B. segregation.
C. mitosis.
D. fertilization.
B. segregation.
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An explanation for a biological process that is substantiated by a large body of evidence is called a
A. hypothesis. B. theory. C. systems biology. D. reductionism. E. prediction.
Which type of plant hormone is primarily responsible for promoting the formation of lateral roots?
a. jasmonates b. gibberellins c. auxins d. systemin e. cytokinins
Counting the number of seeds in a fruit will
give a firm indication of the number of ___ in the flower.
a. carpels b. stamens c. pollen grains d. ovules e. microspores
Which component of air pollution can react with sunlight to form chemicals similar to tear gas?
a. carbon dioxide b. nitric oxide c. sulfuric oxide d. chlorofluorocarbons e. ozone