Which two statements describe how a bean plant and a squirrel obtain energy? a. the bean plant gets energy directly from the sun to make its food by photosynthesis. b. the squirrel is able to make its own energy like a plant through photosynthesis. c. the bean plant uses the sun's energy in cytokinesis to makes its own food. d. the squirrel's digestive system breaks down food for energy

B. The squirrel is able to make its own energy like a plant through photosynthesis.

Explanation:

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.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.