Which of the following organelles is (are) surrounded by at least a double membrane? Group of answer choices Smooth Endoplasmic Reticulum and Rough Endoplasmic Reticulum Mitochondria and Chloroplasts Chloroplasts and Endoplasmic Reticulum Ribosomes and Mitochondria Endoplasmic Reticulum and Nucleus Lysosomes and Golgi

Endoplasmic Reticulum, Mitochondria, Chloroplast, Golgi Apparatus

All of these organelles are bounded by a double membrane...

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.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%