Aderived trait shared only by angiosperms and gymnospetms is

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

How can you tell the difference between rough er from smooth er?

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity