A feature that may be found in viruses but never in bacteria is A feature that may be found in viruses but never in bacteria is. a. a sensitivity to antibiotics. b. an ability to infect more than one type of host. c. may contain an RNA genome. d. they require a microscope to be viewed.

Option D) they require a microscope to be viewed.

Explanation:

Unlike bacteria, virus is a ultramicroscopic pathogenic particle capable of passing through bacteriological filters. So because, the virus is far much smaller than a bacterium, viewing a virus will always require a microscope (electron microscope to be precise) unlike a bacteria that is even visible in culture plates.

Thus, option D is the answer

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

hope i

-lavira: )