The answer is: "permeability" .
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The blade is the flattened portion of the leaf. These expanded blades are called lamina which are attached to the plant stem by the petiole. They come in diverse shapes, sizes, and other characteristics. The other choices are just supporting structures of this structure of the plant.
Explanation:
Originally people believed that disease were the consequences of someone's sins because they are of the believe that living things exist spontaneously not until Louis Pasteur and Koch confirmed the biogenesis theory, he performed several experiments to prove that living cells are produced only from another living cell. This helped to validate the germ theory of disease that disease only develops from microorganisms or specific germs.
Given what we know, we can confirm that the ecological species concept invokes the importance of disruptive natural selection to maintain a pair of similar species found in different, but nearby, environments.
<h3>What is the ecological species concept?</h3>
- This concept includes the idea that each species will occupy a specific niche in an ecosystem.
- This refers to a specific role in each ecosystem.
- This will cause a species that cannot compete with another to adapt to nearby ecosystems in order to occupy a similar niche without competing.
Therefore, we can confirm that the statement in the question accurately describes the ecological species concept in that this concept involves the evolution of species to occupy a specific niche in each ecosystem, and if the niche is already taken they will adapt to nearby ecosystems.
To learn more about ecosystems visit:
brainly.com/question/1673533?referrer=searchResults
