D. The discoveries confirmed many but not all of the classifications that were based on observable traits, and scientists revised classifications when necessary.
Answer:
RNA because it is single-stranded and contains the sugar ribose.
Explanation:
this is not the place to ask that
water filtration systems work by capturing undesirable elements in the water and allowing only clean water through. Water filtration systems for residential use that use actual filters, such as the thin film composite in reverse osmosis, do this by using microscopic pores that block even small bacteria while letting water through. Others work through other materials such as activated carbon or sand, which essentially scrubs the water clean.
1. CAT TAA GGC TCG CCA
2. TAC GGG TCT AGC ATC
3. CCT ATA GTC TTG AAC