The smallest of the single-celled organisms that assist with decomposition in the soil are most likely to have which of the following characteristics?
a. a different form of dna containing uracil instead of thymineb. chitin or cellulose in their cell wallsc. branching, ether-linked hydrocarbons in their cell membranes d. a special form of rna polymerase unique to their domain

The correct answer is option C, Branching ether -linked hydrocarbons in their cell membranes

Reason -

The cell wall of the bacteria includes branched chain alcohols, lipids, ether and phytanales which are connected to glycerol. These chemicals prevent the bacteria from extreme weather conditions and temperatures. It also reduces the fluidity of cell membrane. Due its distinctive cell wall , the bacteria is able to survive in harsh conditions while degrading dead organic matter.  

"A special form of RNA polymerase unique to their domain"

Explanation: This is correct becuase I just took the test. I had it narrowed between, Branching,

1. ether-linked hydrocarbons in their cell membranes

2. A special form of RNA polymerase unique to their domain

and I chose #2 and it was right.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.