Which of the following are adaptations to land of both gymnosperms and angiosperms but are lacking in ferns and mosses?
a. spores
b. vascular system
c. pollen and seeds
d. roots, stems, and leaves
e. fruits and flowers

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt

Which best describes carbon dioxide’s path out of the body

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.