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Questions in biology

[Open]Generally, animals cannot digest the linkages between the glucose molecules in cellulose. How then do cattle get enough nutrients from eating grass?

[Open]Nitrogen fixation is carried out primarily by:

[Open]How are the structures of arteries, capillaries, and veins similar? How are they different?

[Open]What are the hypotheses for glowing water?

[Open]How many hormones does a girl have?

[Open]Why are frogs said to have 2 lives?

[Open]Infiltration is the process by which rainwater becomes groundwater.

[Open]How does climate affect the type of biome found in an area?

[Open]How is gravity affected by mass and radius?

[Open]What determines which stage occurs after a supernova?