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what is zoology???

Found evidence that the continents were joined together at one time.

Each trait of a plant is determined a. an allele b. one gene c. a pair of genes d. one dominant gene

The graph shows the solubility of several different salts in water, across a range of temperatures. according to the graph, which salt can dissolve at a concentration of about 60 g/100 cm3 of water at 40 degrees celsius?