The cell cycle is controlled via a system of

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

What chemical speeds up the process of decomposition in dead organisms are exposed to it? nitrogen oxygen hydrogen chlorine