Males are more often affected by sex-linked traits than females because ) male hormones such as testosterone often alter the effects of mutations on the x chromosomeb) female hormones such as estrogen often compensate for the effects of mutations on the x chromosomec) x chromosomes in males generally have more mutations than x chromosomes in femalesd) males are hemizygous for the x chromosome

What is one affect on the australian environment due to the introduction of non-native european rabbits? (a) more grass grew in response to the need of the growing population of rabbits. (b) the rabbits balance out the food chain as they became a natural prey to many predators. (c) the rabbits the land by digging, which caused the soil to spread much needed nutrients. (d) the rabbits out-competed other small animals species and caused them to go extinct.