Proximity, similarity, closure and simplicity
Answer:
C. They contain sugars, phosphate, and nitrogenous bases
Explanation:
A. is wrong because only RNA is made up of single strands of nucleotides, while DNA is a double-stranded helix.
B. is wrong because DNA and RNA are examples of nucleic acids, not carbohydrates
D. is wrong because only RNA contains uracil, while DNA has thymine instead of uracil.
C. is correct because both DNA and RNA have sugar-phosphate backbones and nitrogenous bases. The difference between RNA and DNA is seen in their names--deoxyribo nucleic acid (DNA) vs. ribo nucleic acid (RNA). Ribose is a type of sugar, the same as found in RNA, while deoxyribose (in DNA) is the same except for not having an oxygen atom on the 2' Carbon (de-oxy = without oxygen).
Answer:
Friction: Rubbing your hands together to create heat
Conduction: Putting your body parts over something warm, for example a fire
Radiation: Laying in the sun to soak up the warmth
Answer:
Columbian Exchange
Explanation:
I looked up definitions and information on all the option words, Columbian Exchange seems to be a fit for the answer.
Answer:
Barrow, Alaska: 71 degrees North. Burlington, Vermont: 44 degrees North. Honolulu, Hawaii: 21 degrees North. Equator: 0 degrees.
Explanation:
