A student took a leafy branch and placed it in a polythene bag and tied it. He placed the bag in the sun for some time. After a few hours the student noticed some water droplets on the inner side of the polythene bag. Which process in plants is responsible for this?

Match the types of competition to their descriptions

The cluster of developing cells from conception until birth is called an

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.