Humans have come to value salt marshes and now seek to preserve and restore them Answer A
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Answer:
They protect the body from infectious agents.
And
They signal the immune system to destroy pathogens.
Explanation:
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Answer:
A. Blood is pushed through vessels
Explanation:
Heart muscles contract and relax. The most important effect of this action on the human body is Blood is pushed through vessels.
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Answer:
D) the incineration of all hazardous waste
Explanation:
The method of incineration is the most desirable way to reduce overall hazardous waste because which can detoxify and destroy certain organic wastes.
Some of the different types of incinerators are the multiple-hearth furnace, fluidized-bed incinerator, rotary kiln, and liquid-injection incinerator.
Hence, the correct answer is "D".
The key evolutionary development of animals seen for the first time in sponges is that of Multicellularity. A Multicellular organism has a longer lifespan than an unicellular organism and since it has multiple cells, it can perform more functions. Sponges do not have distinct circulatory, respiratory, digestive, and excretory systems – instead the water flow system supports all these functions.
