12.The plum pudding of the model the atom had negatively-charged electrons embedded within a positively charged sup.
5. Adenine and thymine base pair
6. Chargaff's base ratios
10. Hydrogen bonds exist between base pairs (A/T and G/C) allowing DNA to maintain the helical structure. Adenines and thymines have two hydrogen bonds, guanines and cytosines have three. When these hydrogen bonds are broken, this allows for "unzipping" of the DNA - which can then be replicated, transcribed/translated to RNA, etc.
Marble is a nonfoliated rock that forms when heat and pressure change limestone. Marble is formed by evenly distributed pressure.
Answer: A) or the first option.
Answer:
The balloons repelled each other because they both are electrically charged.
electrically charged object produces electrostatic force . Two electrically charged object repels each other . So both balloons are charged
The answer would be A Rachel Carson
