The pangaea theory supports the theory of plate tectonics because

a) it is based on the idea that there were several land masses when earth was first created
b) it is based on the idea that all the present continents were one supercontinent
c) it does not require scientists to support the notion that earth’s plates can move
d) one day, earth will have one large land mass again

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?