地衣是一种绿藻或蓝藻与一种真菌共生的形式.Lichen is a form in which green or bluegreen algae and a fungus live together symbiotically.但金与其通常的共生元素在树叶中并不是组合共生的.However, no intergrowth of the paragenetic elements was observed in plants.委内瑞拉和古巴仍...
Scientists believe overexposure to antibiotics helps resistant bacteria become more widespread.科学家认为,过度接触抗菌素使有抗药性的细菌的传播更广泛.The relationship between stabilizing linewidth and overexposure theory is also discussed.此外,还探讨了过...