Answer the following question given this paragraph: Because energy is a product, energy is given off by the reaction. Therefore, this reaction is exothermic. Because energy is a reactant, energy is absorbed by the reaction. Therefore, this reaction is endothermic. Q: In an endothermic reaction, what is absorbed by the reaction? Choices: - food - fuel - atoms - energy A:
energy

Answer the following question given this paragraph: Algae play significant roles as producers in aquatic ecosystems. Microscopic forms live suspended in the water column. They are the main component of phytoplankton . As such, they contribute to the food base of most marine ecosystems. Q: What is the main component of phytoplankton? Choices: - sponge - coral - seawater - algae A:
algae

Answer the following question given this paragraph: Messenger RNA ( mRNA ) carries the instructions from the nucleus to the cytoplasm. mRNA is produced in the nucleus, as are all RNAs. Q: What carries the instructions from the nucleus to the cytoplasm? Choices: - concept rna - anderson rna - dirscriptor rna - messenger rna A:
messenger rna