Write a 3-paragraph essay that explains how: 1) hydrogen and helium were formed;
2) how the elements up to iron (atomic number 26) on the periodic table were formed; and
3) how the elements that are larger than iron were formed.

Which process is represented a.) deletion b.) nondisjunction c.) translocation d.) insertion

These are the components of the reservoirs of carbon that are exchanged in our environment.

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked