Plzz ! 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 thymine b chitin or cellulose in their cell walls c branching, ether-linked hydrocarbons in their cell membranes d a special form of rna polymerase unique to their domain

C Branching, ether-linked hydrocarbons in their cell membranes

Explanation:

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 thymine

B Chitin or cellulose in their cell walls

C Branching, ether-linked hydrocarbons in their cell membranes

D A special form of RNA polymerase unique to their domain

Ether linked hydrocarbons can either be straight chain or branched hydrocarbon. Decomposition of the soil is when microorganism breaks large soil particles into soil togethere with humus to make nutrient available in soil

the answer is: the „power stroke“ step.

muscle contraction can be divided into a few steps:

1. the release of ach (acetylcholine) in the synaptic cleft, binding of ach for its receptor and consequently opening of the ca channels.

2. the release of ca, binding of ca for the troponin

3. troponin shifting the tropomyosin, which was blocking the active site on the actin

4. myosin heads attaching to actin by breaking down atp to adp+ pi

5.   formation of the ‘cross-bridge’ on the active site of the actin filament by myosin head

6. “power stroke” -the cross bridge pulls actin, which slides over the myosin

9.     7. the release of adp completes the cross-bridge movement and atp attaches to myosin, breaking the actin-myosin cross bridge.