Which provides food, provides shelter, and prevents erosion plants scavengers decomposers

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

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

Eutrophication caused by human nutrient pollution.