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Foraminiferans - Protozoan
Foraminiferans are largely benthic marine species. They have multi chambered calcareous tests or shells with numerous pores, hence the name foraminifera or pore bearer. A single large opening allows the cytoplasm to protrude out. The chalk cliffs of Dover England are formed from deep sediments of foraminiferan shells.
Figure: Various types of foraminiferan shells formed chiefly of calcium carbonate. A fossil species -Nummulites is an important contributor to the great limestone deposits in certain parts of the world.
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what is filter feeding?..
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Cortex can be described as follows 1) The outer part of the organ, such as, the adrenal cortex, which produces many steroidhormones; 2) in plants, the area of the stem or root
Define pisces
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