Quentin, a crime scene investigator, has discovered a gun at a crime scene. which of the following is the proper procedure for preparing it for transfer to the lab?
a. quentin picks up the gun using a textured surface, removes the magazine, and packages the gun and magazine separately
b. quentin uses a pencil to pick up the gun by the trigger guard, drops it into an evidence bag, and fills out an evidence log.
c. quentin picks up the gun using a textured surface, examines the nozzle for evidence of gunpowder, then removes the magazine.
d. quentin photographs the gun before moving it, then packages the ammunition and gun in separate plastic bags.

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

Plant species a has a diploid number of 12. plant species b has a diploid number of 16. a new species, c, arises as an allopolyploid from a and b. the diploid number for species c would probably be a) 12. b) 14. c) 16. d) 28. e) 56.