animalia assignment- st



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Camosun Bog -st

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1. How was the bog formed? A bog is an ecosystem where plants are adapted to an acid environment, low nutrients, high water table, and little oxygen in the water. The bog is formed when a lake slowly fills up with plant debris. Sphagnum moss and other plants grow out from the lake's edge.  As sphagnum dies, more sphagnum grows on top of it. 2.  What is the keystone species of a bog?  Read about sphagnum moss.   How does Sphagnum maintain the acidic conditions?  The keystone species of a bog is sphagnum moss. The sphagnum moss is a plant that is favored by low oxygen, low nutrients, and moist acidic conditions. Sphagnum moss is sometimes referred to as peat is essential to a bog. Without sphagnum a bog would not exist. Sphagnum maintains acidic conditions by absorbing water and pumping hydrogen ions into its surroundings which creates a very acidic environment. 3.  What is peat?  How is it different from soil? Peat i...
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sponge assignment/shape of life -tk

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SH APE OF LIF E   (Page 3)   Despite being broken down,   Into smaller pieces all around   To the level of cells,   They can still recognize themselves   Sticking together and forming clumps,   The new, small sponges  become  lumps   Sponges can regenerate with ease,   Because it’s their expertise   Capable of reassembling,   They leave people remembering   Becoming anew through resurrection,   Sponges pull off a feat no other could mention   SHAPE OF LIFE   (Page 2)     Life as we know it,   Was like an empty pit   Until the first sponge appeared   “I will be the first animal”, it volunteered   Coming in many sizes and shapes,   It receives nutrients when water escapes   The pores of the sponge,  porocyte   Sponges were a gorgeous sight   Lacking nervous system, limbs, muscle, and brain,   Many did not think sponges would remain   Relying...
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