During development, individual cells of the same organism begin to produce different proteins because a) not all cells can synthesize proteins. b) specific genes are activated in the cells. c) the cells have different numbers of chromosomes. d) the cells have different kinds and amounts of dna.

Dean has been collecting data on the health risk related to eating too much fast food. which of these would not be a valid conclusion that dean could develop? a) the food in fast food restaurants tastes really good. b) people who eat fast food three times a week are more likely to be obese. c) the chemicals found in the "special sauce" can be linked to acid indigestion. d) eating at fast food restaurants twice a week may lead to increased chance of heart attack.

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

Which of the following typically characterizes a tropical rainforests