What does the term heterozygous mean? A. Members of a gene pair that are the same
B. Members of a gene pair that are different
C. The organisms physical appearance
D. None of the above

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Whats one way that rocks do not follow the typical rock cycle pathway?