Why was the reduction of the bison population to under 1,000 individuals a bottleneck event for the species? a. it drastically reduced the gene pool of the species. b. it reduced the territorial range available to the species. c. foreign genes were introduced by crossbreeding with cattle. d. it reduced the prevalence of recessive traits

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.