Explain how does diffusion take place in both animal and plant cells

The movement of various substances into a plant, usually from the soil, out of which the green plant synthesises the numerous complex organic compounds, is accomplished, principally through the agency of the process known generally as diffusion.

In some cases, however, the operation of the diffusion phenomena is complicated by other factors

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The movement of various substances into a plant, usually from the soil, out of which the green plant synthesizes the numerous complex organic compounds, is accomplished, principally through the agency of the process known generally as diffusion.

In some cases, however, the operation of the diffusion phenomena is complicated by other factors

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.