The ramp shown here is an example of an inclined plane. How does the ramp produce mechanical advantage?
A. It reduces the distance over which the input force needs to be
applied
B. It reduces the amount of input force needed to do a certain
amount of work
C. It reduces the overall amount of work done on objects moving up
the ramp
Dit reduces the amount of useful work done on objects moving up
the ramp

Ineed to know why d is the correct answer asap

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?

What is turgor pressure, what causes it, and what does it do for a plant?