The diagram shows two water molecules. what does the the dotted line between the water molecules represent? a. a polar bond b. a covalent bond c. a hydrogen bond d. an eletronegative bond

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?

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?