Define/Explain the following terms:
$(1)$ Paleontology
$(2)$ Acquired traits

(N/A) $(1)$ Paleontology: It is the branch of science concerned with the study of fossil remains of plants and animals to understand the history of life on Earth. Fossils provide direct evidence of evolution by showing the chronological sequence of organisms that existed in the past.
$(2)$ Acquired traits: These are the characteristics that an organism develops during its lifetime in response to environmental factors,such as physical injury,learning,or exercise. These traits are not encoded in the $DNA$ of the germ cells and,therefore,are not inherited by the offspring.