Jesús Deja a cargo a Pedro diciendo:
ayuda, necesito la respuesta

Did the universe cool off or get hotter as it expanded after the 'big bang"?

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.