Joseph connell discovered that balanus barnacles were excluded from the upper intertidal zone by while chthalamus barnacles were excluded from the middle intertidal zone by

At which point on the diagram do convection currents occur to drive plate movement?

The process by which liquid water changes into water vapour is called what ?

Although china’s total economic output, measured by gross domestic product (gdp), is third largest in the world, it is considered a developing nation. what is most likely the most important factor for this designation? a. china’s government spends money on things that do not benefit human development. b. china has a large population, so its gdp per person is only modest. c. china has a strong economy but weak literacy and school attendance rates. d. china’s high rates of disease offset the country's economic gains.