mjlchance367
20.10.2021 •
Biology
How does oxygen have a direct effect on sea urchins
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Ответ:
When the oxygen level is low in a Purple Sea Urchin, muscles associated with Aristotle's Lantern pump fluid through its body (through the canals). Carbon dioxide (waste/not good stuff) is released through the anus. The Purple Sea Urchin obtains oxygen through diffusion only (the diffusion of oxygen into the organism).
Explanation:
Brainliest please
Ответ:
A rabbit killed by a fox in the woods
Explanation:
A fossil is the preserved remains or traces of a dead organism. The process by which a fossil is formed is called fossilisation. After an animal dies, the soft parts of its body decompose leaving the hard parts, like the skeleton, behind. This becomes buried by small particles of rock called sediment.