What were the results of the treaty that Commodore Perry helped to negotiate between the US and Japan? Check all that apply. Japan opened trade with the United States. The United States ended its war with Japan. The United States took control of part of Japan. Japan closed its ports to all nations except the US, China, and Korea. Japan established friendly diplomatic relations with the US.

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.