Which of the following statements best describes the major difference between prophase I of meiosis and prophase of mitosis? In prophase I, tetrads of homologous chromosomes form and crossing over occurs.
In prophase, the nuclear membrane dissolves and spindle fibers attach to the chromosomes.
In prophase I, the chromatin condenses to form visible chromosomes.
In prophase, the replicated chromosomes are linked together as sister chromatids.

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water