If there are 21 boys and 42 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

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

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.

What will a hypothesis become if supported by repeated expermentation