For the Week ending 12/09/11
Directions: Choose the word that matches with the definition and appropriately fits into the blank space in the sentence.
| discredited theory that living organisms can develop by spontaneous generation from inanimate material; spontaneous generation A mad scientist may combine various chemicals in a test tube in an attempt at _______. | 
| virus that attacks bacteria only, used extensively in genetic research A modified bacterial virus, called a _______, is used to deliver gene encoded self-destructive protein production into specific harmful bacteria. | 
| two related species becoming increasingly different over time Sea gulls a wide _______ in plumage, bill shape, wing length, and walking maneuverability in adaptation to different habitats. | 
| one complete haploid set of chromosomes and their genes for an organism, containing all its inheritable traits The Human _______ Project took 13 years to identify some 25,000 genes, at a cost of $3-billion. | 
| observable characteristics of an organism Each _______ of the different sea gulls demonstrates distinctive characteristics shaped by environmental factors. |