- Life Sciences
undifferentiated and unspecialised actively dividing cells in the growth regions of plants, such as root and stem tips, cambium and axillary buds.
the series of activities that takes place in a cell leading to its division and duplication (...
an organ system that passes nutrients, gases, hormones, blood cells, etc. to and from cells in...
the windpipe or tube that carries air. It is kept open by C-shaped rings of cartilage.