Generalize how restriction enzymes are used

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

How does a gymnosperm prevent itself from pollinating the same tree

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates