Which statement is true of cancer? a) cancer results when cells stop dividing. b) mutations in certain genes caue tumors. c) tumor cells lack growth factors and dna. d) dna mutations are unrelated to cancer.

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

Biology ! the conversion of inorganic carbon to organic carbon by plants during photosynthesis is known as _[blank]_. filtration immigration reabsorption primary production