Which cells contain a nucleus and membrane-bound organelles? a. prokaryotic b. eukaryoticc. archaean d. cyanobacteria

Liquid water turns into water vapor at which step in the water cycle

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.