Which describes the notation Tt for the trait of plant height?

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?