Answer:
Regulon
Explanation:
A regulon comprises of a group of operons that are controlled by the same regulatory protein referred to as a regulator which could act as a repressor or activator.
Regulons in bacterial cells are referred to as the fundamental unit of the response system. Regulons are majorly used when referring to prokaryotes that have their genome organized to operons, although this term is not limited to that. The genes that are found in a regulon are arranged into two or more operons at different regions on the chromosome.
 
        
             
        
        
        
Igneous rocks are formed by hot melted magma coming from the Earth's core that crystalizes when gets in contact with air. They can be either intrusive or extrusive. B) <em>Large mineral crystals.</em>
<h3>
What is the igneous rock?</h3>
These rocks come straight from the interior of the Earth.
A liquid mass of silicate composition comes from the Earth's core. This melted mass comes at an extremely high temperature. 
Magma begins to cool and solidify during its ascent to the Earth's surface. It solidifies and crystallizes into igneous rock following the magnetic field orientation. 
Thre are two types of igneous rocks
• plutonic rocks ⇒ in areas close to the terrestrial crust ⇒ intrusive
• volcanic rocks ⇒ on the surface ⇒ extrusive
According to this description, the correct option is B. <em>Large mineral </em><em>crystals</em><em>.</em>
You can learn more about Igneous rocks at
brainly.com/question/23555197
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Answer:
An ecological pyramid is a pyramid that illustrates the relations between living organisms at different levels
 
        
                    
             
        
        
        
Answer: See explanation
Explanation:
Journal entry simply has to do with the recording of transactions in an accounting book which signifies the debit and credit balances of the company. 
For the adjusting entries:
On Dec 31:
Interest expense:
= 16000 × 9% × 11/12
= 1320	
Prepaid insurance 
= 4400/24 × 9
= 1650
Check the attached file for further explanation.
 
        
             
        
        
        
Answer
They have polygenic inheritance and are also affected by the environment factor.
Explanation 
The trait of height and skin tone are controlled by different genes and are also affected by environmental factors. The skin tone and height within the population is not specific, both have wide ranges varies from high expression of the gene to less or even no expression of the gene. Mostly these factors are mostly affected by inheritance and less by environmental factors.