(Q).
Fact 1: Oncogenes promote the division of cells with damaged DNA.  Fact 2: Oncogenes An oncogene is a gene that is capable of causing cancerous change.  Given the two facts above, answer the question "What promotes the division of cells with damaged DNA?" with the following options:  - PDAs  - chemicals  - smoking  - lmestone  - A drug.  - acid rain  - bacteria  - cancer
(A).
cancer


(Q).
Fact 1: Cells are the basic units of the structure and function of living things.  Fact 2: Biology is the science of living things.  Given the two facts above, answer the question "What is the study of things with cells?" with the following options:  - etomology  - properties  - cell towers  - disease  - animals  - archaelogy  - biology  - fungi
(A).
biology


(Q).
Fact 1: Plants are multicellular eukaryotes with cell walls made of cellulose.  Fact 2: Plant cell walls are composed primarily of lignin and cellulose.  Given the two facts above, answer the question "Plants are multicellular eukaryotes with cell walls composed primarily of what?" with the following options:  - protein  - plants  - leaves  - chemicals  - Energy.  - lignin  - eukaryotes  - Energy
(A).

lignin