What characteristic of most of the tropical open oceans is directly responsible for the low chlorophyll levels in these waters?

Ashort, vertical, solid, or fleshy stem possessed by gladiolus and which is used in reproduction is termed a

What happens when the cell copies its chromosomes

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