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Suppose you are studying a mysterious disease and you discover that it is caused by a eukaryotic pathogen that contains nucleic acid (DNA and RNA), protein, a plasma membrane, ribosomes, and organelles. Is it most likely a bacterium, microscopic fungi, a virus, or a prion?  Explain your answer and explain how you ruled out each of the other microbes. 

Which of the following is associated with cephalization? 

Which of the following observations provide evidence for evolution? 

True or False: In order to obtain nutrients, fungi must grow into their food, release digestive enzymes, and then absorb the products.

Which of the following in a benefit of healthy ecosystems?

Which field of ecology focuses on interactions between organisms and their physical environment?

True or False: All plants undergo primary growth. 

Antiviral drugs ___________. 

___________ are microorganisms that cause infectious diseases in humans. 

The First Amendment protects the right to write and publish a book calling for the violent overthrow of the U.S. government.