(The central dogma does not apply to some viruses. Select a specific virus or type of virus and explain how it deviates from the central dogma.
Please respond on separate paper, following directions from your teacher.

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.

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled