Answer:
the outer membrane has small organic molecules but the inner membrane is less permeable and studded with transport proteins.
Explanation:
In DNA, the "rungs" between the two strands of DNA are formed from the nitrogenous bases adenine, thymine, guanine and cytosine
Answer:
Closely related species occupying the same niche.
Explanation:
Competitive exclusion principle states that the two species cannot exist together if they share the same resources. The one species completely exclude the other species from their niche.
Competitive exclusion principle generally occurs between the species that occupy the same niche and are closely related with each other. The competitive exclusion principle first explained between the species <em>P. aurelia </em>and <em>P. caudatum.</em>
Thus, the correct answer is option (B).