What would the independent variable be in an experiment testing which types of paper airpane goes furthest

Differences between compact bone and cartilage

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

Organize the following objects from lowest volume to highest volume