Which organisms externally digest dead organic matter and then absorb the nutrients? a. autotrophs b. detritivores c. heterotrophs d. saprotrophs (total 1 mark) 2. what are the two components of an ecosystem? a. community and abiotic environment b. species and habitat c. habitat and abiotic environment d. species and community?

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

In 2015, about ten percent of total u. s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.