Grassland biomes are prone to frequent natural fires. These fires clear out shrubs and dead materials. What positive effect do natural fires have on the ecosystem?

Fires prevent trees from
grass, which is an important characteristic of the grassland biome. Fires also help the growth of
some plants by their seeds

Sammi is studying the interaction of the digestive and circulatory systems in the human body. she has listed various processes that occur in each of the systems. put the processes in order to describe the interaction between these two systems. tiles nutrients diffuse through the villi of the small intestine.digestive processes break nutrients down in the mouth, stomach, and small intestine.blood is pumped through the circulatory system to deliver nutrients to other organs.nutrients are ingested at the mouth.nutrients enter the capillaries of the circulatory system. sequence

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

The chemical form of energy that is useable by the cell to do work