Question 12 Multiple Choice Worth 3 points) (03.04 LC)
Why are soil samples typically collected from various spots at the crime scene within a 100-yard radius?
To collect all possible evidence from the scene
To get at least one much deeper sample of the soil
To get at least two tablespoons total of soil
To establish a level of variation in the soil

Coat color in cats is determined by genes at several different loci. at one locus on the x chromosome, one allele (x ) encodes black fur and another allele (xo) encodes orange fur. females can be black (x x ), orange (xoxo), or a mixture of orange and black called tortoiseshell (x xo). males are either black (x y) or orange (xoy). bill has a female tortoiseshell cat named patches. one night, patches escapes from bill\'s house, spends the night out, and mates with a stray male. patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. what are the genotypes of patches, the stray male, and the kittens?

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.