Please help! Some species of plants maintain a symbiotic relationship with bacteria that live in nodules on the plant's roots. Which is a likely function of such bacteria that would benefit the plant?
A) phosphorus fixation
B ) nitrogen fixation
C) aerobic respiration
D) photosynthesis

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?

Which would be the most useful source of evidence to support mcneill's contention?

The negative impacts of nonnative species generally outweigh the positive impacts