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tatyana61 [14]
3 years ago
11

_____ are the simplest bilaterian animals and lack a body cavity.

Biology
1 answer:
Dafna1 [17]3 years ago
5 0

Sponges are the simplest bilateral animal and do lack a body cavity. A sponge has two layers of tissue.

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Protists that play an important role in aquatic food webs are called
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<span>From the above their role in the aquatic food chain is clear . </span>

<span>They perform their role as </span>
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<span>2 ) consumers = example =Animal like Protists - also called protozoa (means "first animal") - heterotrophs </span>
<span>and </span>
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</span>
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Explanation:

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Osmosis is the process by which solvent's molecule move from region of low concentration (hypo-tonic) to the region of high concentration (hyper-tonic) through a semi-permeable membrane.

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