In a breed of horse, the brown coat is codominant with a white coat. If the resulting offspring are heterozygous for coat color, what will be the phenotype of the offspring?

The coat will have both brown and white.

Explanation: Codominant traits are traits that both are both dominant, meaning they are both showing in the offspring if the offspring is heterozygous (meaning they have a mixed genotype ex: Bb or BW.)

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.