Which best describes derived characteristics? O They are newly evolved traits.
They appear in all the ancestors.
O They appear at the end of each branch.
They stem from primary characteristics.

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm