You are part of a desert plant research team trying to discover crops that will be productive in arid climates. You discover a plant that exhibits multiple drought responses. What can you conclude about the molecules responsible for these responses? They alter the amount of energy available to the plant.
They respond to air temperature changes.
They can reset the biological clock.
They are modified by changes in moisture.

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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.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.