How can distant cells communicate? O membrane carrier proteins O second messengers O nuclear pores O hormones O integrins

In which situations is the principle of cross-cutting relationship useful in determining relative age?

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?

Which organism actively hunts other