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!
Two substances in the body that will move based on the principle of diffusion are CARBON DIOXIDE AND OXYGEN.
Diffusion is the process by which molecules of a substance move from the region of higher concentration to the region of lower concentration. Carbon dioxide and oxygen can easily move in an out of the cell via diffusion.<span />
Carbon dioxide, oxygen, water, and acids may all cause chemical weathering. Mechanical weathering is the process of breaking a large rock into smaller pieces without changing the minerals in the rock. Mechanical weathering may be caused by frost, ice, plant roots, running water, or heat from the sun.
A. Indique la relación entre la ocurrencia de cancer y la edad.
