The DNA in cell can be copied thousands of times over a lifetime, and occasionally there are errors in the copying of DNA. What are these errors or "typos" referred to?
Select one:
O a. Mutations
O b. Nucleotides
a Genes
O d. Chromosomes
is a package of DNA that codes for a set of traits of an individual.

Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?

Write the balanced chemical equation forphotosynthesis.

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?