The producers in aquatic ecosystems include organisms in which of the following groups? a. cyanobacteriab. algaec. plantsd. photoautotrophse. all of the above are correct.

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?