Chemicals used in chemotherapy treatments to fight cancer can also harm cells in hair follicles and bone marrow. what characteristic do these cells most likely share with cancerous cells?
they form tumors.
they spread through the blood.
they divide rapidly.
they contain a mutation.

The shift of a vehicle's weight around its center of gravity is known as

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

In 1859, the english naturalist charles darwin published a book entitled on the origin of the species. one of the major ideas that was presented in his book was the theory of natural selection. what was another idea that was presented in his book?