Answer:
The correct answer is number one: <em>Filamentous rotating structures that provide motility may be singular, paired or scattered.</em>
Explanation:
Flagella are organelles defined by function rather than structure.
The primary function is that of locomotion but also being sensitive to chemicals and temperatures outside the cell.
Helicobacter pylori is a good example of flagella: It uses multiple flagella to propel itself through the mucus lining to reach the stomach epithelium.
Sperm cell is a good example, which uses its flagellum to propel itself through the reproductive tract of females.
I hope it helps!
The speed of the cross country runner is equal to 4 km/min.
<u>Given the following data:</u>
To determine the speed of the cross country runner:
Speed can be defined as the distance covered by an individual per unit time and it can be measured in kilometer per minutes (km/min).
Mathematically, speed is given by the formula;

Substituting the given parameters into the formula, we have;

Speed = 4 km/min.
Read more: brainly.com/question/13102821
The membrane surrounding the cytoplasm of the cell