Answer: C. It changes the course of deep ocean currents
Explanation: deep ocean currents consists of cold water flowing slowly across the ocean floor
Science aims to explain and understand it <span>aims to produce more and more accurate natural explanations of how the natural world works, what its components are, and how the world got to be the way it is now</span>
Answer:a). base pairing rules
Explanation: A DNA is a double stranded helix in which the two DNA strands are antiparallel and complementary to each other. Watson and Crick developed the base pairing rules that adenine pairs with thymine and cytosine pairs with guanine. The complementary strand are not the same in base sequence and composition instead anywhere adenine is found in one strand, thymine is found in the other strand and anywhere cytosine is found in one strand, guanine occurs in the other strand.
<span>The correct option is D. An homologous structure is a type of structure that is found in different animals but have similar form of arrangement. Homologous structures indicate decent from a common ancestor or same evolutionary origin. Homologous structures in two animals may not be alike in appearance or function but genetically, they came from the same structure of the last common ancestor.</span><span />
