Vì sao gọi cặp nhiễm sắc thể XX hay XY là cặp nhiễm sắc thể giới tính?

hope it's help you ok have a good day

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

there's the proffessional site that will you.