Water had the capability to hold up the thin overhang of the underground.
When water is depleted, there is nothing to support this overhang, which eventually led to the formation of sinkholes.
As for the collective behavior, it's all because of the scarcity. Water is one of human's basic needs to survive. When water is scarce, this will force the people to compete with one another to obtain it, which will cause the behavior
Answer: The correct option is A.
Biosphere and ecosystems
Explanation:
This is because Biosphere and ecosystems include non living things and biosphere is the layer of the ecosystem that consist of both living and non living things.
Ecosystem consist of a area which consist of living things like plants, animals e t.c interacting with the non living part of the environment I e physical part which include temperature, soil e.t.c.
1.) <span>To be useful, a scientific name has to refer to all living species.
</span>2.) Several different classes make up a <span>phylum.
3.) </span>Which are the two highest-level taxa in the Linnaean system? phylum and kingdom.
4.) <span>Animals that are warm-blooded, have body hair, and produce milk for their young are grouped in the class Amphibia.
5.) </span><span>The only "natural" taxa in Linnaeus's system is the </span><span>species.
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The bone-forming cells that produce collagen and proteoglycans and release matrix vesicles are called <u>Osteoblasts</u>
<h3>What is skeletal system?</h3>
They are part of the skeletal system. The skeletal system is made up of bones, ligaments, cartilages and tendons. There are 206 bones in the human body.
Learn more about bones:
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