How effective are the various ways to take imagining of the brain? Have this done correctly for brainliest!

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

What are genotypes? what are phenotypes?

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.