List three (3) of Brahe's discoveries and contributions to modern astronomy.

Without benefit of a telescope, Brahe used armillary spheres that were able to physically represent a model of the sky and develop celestial maps of planetary movement. Brahe created detailed mathematical tables that astronomers used for centuries. He also correctly established the positions of 1,000 fixed stars.

Explanation:

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.