What group of animals causes trichinosis and elephantiasis?

The answer is Filarial parasites. They belong to the group of roundworms of the Filarioidea type. An example of a filarial worm is the Wuchereria bancrofti. These organisms cause lympathic filariasis (LF) which is characterized by edema. They are spread by the mosquito vector.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.