What are some "nonliving characteristics" of viruses? a. they are non-cellular

b. they do not need energy

c. they can be crystallized and stored indefinitely, yet still infect a host cell if presented to it.

d. all of the above

Consider an organism that is eukaryotic, found in both unicellular and multicellular forms, may resemble a plant but is not photosynthetic, has chitin in its cell walls, and absorbs organic nutrients from decomposing material in the environment. this organism would be classified as which of the following types of organisms? a. fungib. protozoac. bacteriad. archaea

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird