Why does magma form at mid-ocean ridges?

Which of the following is the main purpose of a human community?

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?