Which of the following can disrupt genetic equilibrium?
a. mutation
c. genetic drift
b. migration
d. all of the above

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome

Kidney stones are tiny crystals of calcium or magnesium that block the narrow sections of the excretory system. which symptoms would a person with kidney stones experience? a. inability to store urine; pain in the bladder b. inability to store urine; pain in the urethra c. reduced urine flow; pain in the bladder d. reduced urine flow; pain in the urethra