Which statement best compares a multicellular organism to a single-celled organism? a. a multicellular organism has organ systems that interact to carry out life functions, while a single-celled organism carries out life b. a single-celled organism carries out fewer life functions than each cell of a c. a multicellular organism always obtains energy through a process that is different from that used by a single-celled organism. d. the cell of a single-celled organism is always much larger than an individual cell of a m-cellular organism.

I'm pretty sure the answer is b because since multicellualr organisms have more cells, they carry out more functions rather than a singlecellular organism.

Explanation:

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.