Which of the sample(s) shown below is/are eukaryotic (with nucleus although some times they lose their nucleus like red blood cells)?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

What is the correct trna sequence that would match the following mrna sequence.gcgaua