Construction of phylogenetic trees (cladograms) is based on the assumption that: A.) new species are formed at a constant and predictable rate
B.) characteristics shared among species reflect descent from a common ancestor
C.) homologous features usually cannot be distinguished from analogous features
D.) most species frequently

what following? you said which of the following. but there is no be more specific.

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

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals