what are the four main challenges that need to be overcome as scientists come together to try to get a probe to an exoplanet​

Match with o for organic and i for inorganic for each compound

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

Adistinctive characteristic of mammals that is not observed in other vertebrates is