What is the best explanation for why scientists involved in biotechnology sometimes insert the dna of one organism into a second organism?
to increase meiosis
to make more efficient cell organelles
to create a new species
to cause the second organism to produce proteins

How do the evolutionary chart and the video support the claim that all living things are made up of cells?

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?

Which of the following is a true statements about viruses? viruses have no nucleus. viruses are alive. viruses have a cell membrane. all viruses are deadly.