Meiosis results in genetic variability within a species. Which process is likely responsible for this? A . replication of genetic material in parent cells
B . exchange of genetic material between chromosomes
C .formation of four daughter cells with their own D. chromosomes
reduction of chromosomes in the parent cells

Hemoglobin is the compound in red blood cells that carries oxygen to the body. the distribution of hemoglobin in women in g/dl of blood is approximately normally distributed with mean 14 and standard deviation 1. too little hemoglobin, and you're anemic. 2. too much, and (unless you live at high altitudes), you can have other problems.

What are two reasons for why a species might disappear from the fossil record?

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.