<span>The best definition of a fossil is any trace of an organism that lived in the past. Technically, a couple of the other choices (i.e. trace of an organism turned to rock, a hard part of an organism that has been preserved) could be considered within this group.</span>
Answer:
Sexual reproduction begins with sperm and egg cells, which are produced through a process called meiosis. ... Sexual reproduction occurs in both plants and animals. Among plants it is used most notably by flowering plants. The pollen grains of flowers contain the sperm
Explanation:
Because evolution has not been explicitly proven. There has been some evidence, but there is not enough real proof to support this. Even the man who invented the theory of evolution ended up not believing in his own theory at the time of his death. Overall, the premise of evolution is built on an unstable rock, a theory.