The answer to that is called a Vascular Tissue(s). Hope that helps.
~Silver
Answer:
Option C, Estuary
Explanation:
<em><u>An estuary is a geographical entity where the salty water of ocean mixes with fresh water of river. The resulting water is known as brackish water. The brackish water is not as salty as that of ocean and also the salinity level of water rise and fall regularly.</u></em>
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<em><u>Thus, an organism that is able to live in both salty water and fresh water environment can survive in an estuary.</u></em>
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<em><u>Hence, option C is correct</u></em>
Answer:
Parasitism
Explanation:
This type of relationship involves one organism living with, on, or inside another organism and harming it. This relationship involves:
Host - the one being harmed in parasitism in this case the fish.
Parasite - the organism (the one doing the harm) that benefits in parasitsm in this case the leech.
After the depolarization wave front passes through the atria, it enters that AV node which is located at the apex of the triangle of Koch. It would be the AV node that <span>collects the depolarization wave from the atria to pass it onto the ventricles. Hope this answers the question.</span>