How can a black hole be detected even though its gravitational field is too strong for light to escape?

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.

How does the nervous system affect the excretory system?

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.