Answer: B. Closed
In a closed circulatory system is the one in which the blood is circulated to all the parts of the body of the organism through vessels of different length and width. In this system the blood is pumped from the heart through blood vessels where it is transported to different organs and cells of the body instead of filling up the body cavity.
In the prokaryotic cells section you just list things about what’s not living. In the eukaryotic cells column you put things that are living
Reproduction, I am pretty sure
Hope this help
High littoral zone has greatest abundance of marine organisms.
<h3>What is High littoral zone?</h3>
The intertidal zone, also known as the "littoral zone," refers to the seashore that is covered during high tide and exposed during low tide, revealing a unique biome that survives under such fluctuating conditions.
<h3>Where are most marine organisms found?</h3>
The majority of ocean life can be found in coastal habitats on the continental shelf, despite the fact that this area accounts for only 7% of total ocean area. The majority of open ocean habitats are found in the deep ocean beyond the continental shelf. Species that live in the oceans and on the coasts can help to create new habitats.
To learn more about Marine life from the given link
brainly.com/question/2498427
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