In Passage 2, one weakness of the Berkeley study is that the
researchers

Abag contains even and odd numbered balls in the ratio of 3: 7, respectively. for each of the following, what is the probability of drawing an even-numbered ball? the total number of balls is 240 and 30 of the odd-numbered balls are renumbered by multiplying the numbers by 4.

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.

In which text sample are the ideas organized most logically? a. a butterfly starts its life as an egg. the egg hatches to reveal a tiny caterpillar. the caterpillar eats a lot of leaves. it grows quickly, shedding its skin as it grows. this shedding takes place four or more times in a process known as molting. the caterpillar then forms a pupa or chrysalis. inside the chrysalis, the caterpillar slowly transforms into a beautiful butterfly. b. the molting process is characteristic of caterpillars. eventually the caterpillar grows into a beautiful butterfly. the caterpillar eats a lot of leaves, growing quickly. as a result, it becomes too big for its skin, and it has to shed its skin four or more times. the caterpillar hatches from the egg laid by a butterfly. c. a tiny caterpillar hatches from the egg. the egg is the starting point of a butterfly’s life. when it becomes a caterpillar, it eats a lot of leaves. it grows quickly, shedding its skin as it grows. this shedding takes place four or more times. this process is known as molting. the caterpillar then forms a pupa or chrysalis. then the caterpillar slowly transforms into a beautiful butterfly. d. the caterpillar forms a pupa or chrysalis. inside the chrysalis, the caterpillar slowly transforms into a beautiful butterfly. but where does the caterpillar appear from? a caterpillar hatches from an egg. the egg is the starting point of a butterfly’s life. when it becomes a caterpillar, it eats a lot of leaves. it grows quickly, shedding its skin as it grows. this shedding takes place four or more times in a process known as molting.