In a certain breed of dogs, black hair is dominant and brown hair is recessive. if two parents are heterozygous for black hair, what is the probability that their offspring will be black?

i thought it was 50% but it was wrong? provide an explanation, : d

The response is the basis for vaccination. primary secondary tertiary none of the above

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?