Cell theory was fdiscovered in the 17th century. but the first. cell theory was credited in the 19th century.
<h2>Answer:</h2>
Following are the four combinations of active or inactive regulatory proteins that could be present anytime in the cell:
- Active repressor , Active activator
- Active repressor, Inactive activator
- Inactive repressor, Active activator
- Inactive repressor, Inactive activator
anagen phase ,When a hair follicle first begins to grow, it actively produces hair.
<h3>What exactly is the embryogenesis phase?</h3>
The Anagen Phase, sometimes referred to as the "Growth Phase" or "Active Phase," is when cells in the root of your hairs are dividing the fastest, leading to the formation of more new hair.
<h3>How can I tell whether my hair is currently in the anagen?</h3>
The First Stage - Anagen,The first and most noticeable stage of the hair growth cycle is called the anagen phase.When body hair is ready to be removed and is above the skin, it is in this phase.
To know more about nuclear dna visit:
brainly.com/question/1566001
#SPJ4
A: because the lymph are connected to the <span>lymph nodes? </span>