You are confronted with a box of preserved grasshoppers of various species that are new to science and have not been described. your assignment is to separate them into species. there is no accompanying information as to where or when they were collected. which species concept will you have to use?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.