In the certain town, 22% of voters favor a given Ballot measure. For groups of 21 voters, find a variance for the number who favor the measure

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers

Aggregation is the process of all of your data. a. gathering b. analyzing c. collecting d. observing