When automobiles burn gasoline, they release many pollutants including sulfur oxides into the air. the release of sulfur oxides is a chief cause of acid rain. which of the following is a consequence to the natural environment due to acid rain?  a. damage to buildings and statues  b. poisoning of fish in lakes  c. air pollution that leads to smog  d. respiratory illnesses such as asthma?

Apart of an ecosystem that can restrict the growth of a population is referred to as

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other