There are several hazards associated with the chemicals in the qualitative analysis experiment. For each chemical, identify the associated hazards. (select all that apply. ).

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same

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

Match each fossil with the layer where it’ll be present based on those conditions.