Answer:
<u>Science</u> is the careful study of the structure and behaviour of the physical world, especially by watching, measuring, and doing experiments, and the development of theories to describe the results of these activities. (according to Cambridge dictionary)
Carbon dioxide, water and energy.
Answer: b is ineffective pointing lights on billboards and street signs upward
Answer: Base pairs are formed when adenine forms a hydrogen bond with thymine, or cytosine forms a hydrogen bond with guanine. The second part of a nucleotide is the phosphate, which differentiates the nucleotide molecule from a nucleoside molecule.
Explanation:
