Synthesize Explain two reasons it is wise to use energy - efficient electric appliances .

Using energy efficient appliances minimizes the exploitation of natural resources, such as natural gas, oil, coal, and water. Energy efficiency works to enhance conservation of these resources as a way to achieve sustainable development.

Explanation: if you want you can paraphraze it like i did.

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the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.