The steps to the respiration and gas changes steps 1-14

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

The activity of the modern sample is 1.10 bq . how long does that measurement take?

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.