The nucleus is the cell as: A) The bones are to a human.
B) The heart is to human.
C) The muscles are to a human.
D) The brain is to a human.

Which of the following is an advantage of solar energy?

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

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?