By definition: Facilitated diffusion<span> is the process of spontaneous passive transport of molecules or ions across a cell's membrane via specific transmembrane integral proteins.~Google
An example, the only I can really think of:
Polar and large molecules normally can't cross the lipid bi layer using simple diffusion, it usually has to be </span>Facilitated diffusion
Tumor suppressor genes and proto-oncogenes cause cancer cells to divide uncontrollably.
The answer is B) proto-oncogenes.
Melanomas are rare to occur but must be removed quickly to prevent them from spreading.
Melanoma is also called "the most serious skin cancer disease" because it can spread very quickly. Melanoma can develop within a mole that is already present on our skin and appear suddenly as a dark spot on the skin that looks different from the remaining types of mole.
Early diagnosis and treatment of Melanoma type of cancer are of great importance so we can conclude that early treatment of Melanomas can prevent it from spreading.
Learn more: brainly.com/question/25033946
Answer:
2.Biotic factors are dependent on abiotic factors for food and protection.
3.Abiotic factors affect the type and number of organisms that live in a particular ecosystem.
Explanation:
An ecosystem is an environment that contains both living and non-living parts that actively interacts together.
The living part of the ecosystem is the biotic factors and the non-living parts are the abiotic factors.
- The biotic components actively depends on the abiotic component for nourishment.
- This is exemplified through the process of photosynthesis.
- Also, the shelter of organisms are derived from the abiotic factors.
- The abiotic factors have significant impact on the type and number of organisms that live in an ecosystem.
