Answer:
eat, lignite, bituminous, and anthracite.
Explanation:
The stage depends upon the conditions to which the plant remains are subjected after they were buried: the greater the pressure and heat, the higher the rank of coal.
D should be the correct answer if i remember right.<span />
Any three characteristics of bacteria area
- lack of membrane-bound organelles
- unicellular
- small (usually microscopic) size.
Dissolving is when the solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules. This break up is caused by coming into contact with the solvent. In the case of salt water, the water molecules break off salt molecules from the larger crystal lattice.
<u>Answer</u>: operator
Operons are the functioning units of a gene within a certain DNA segment. The operator within an operon represents a DNA segment to which an activated repressor protein binds to. When this occurs, the transcription is prevented.
By controlling the operon, an organism is capable of regulation the expression on various genes. This is prompted by different environmental factors.