Two populations that are separated by a mountain range can no longer interbreed to produce fertile offspring. this is an example of allopatric speciation subspecies speciation niche speciation sympatric speciation

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 the following human activities resulted in the growth of the north american deer population?

Communication and transportation have improved as a result of scientific advancements. select the best answer from the choices provided of mark this and return save and exit next