Answer:
I think it is the first one
The concept of the struggle for existence<span> concerns the competition or battle for resources needed to live. It can refer to human society, or to organisms in nature. The concept is ancient, and the term </span>struggle for existence<span> was in use by the end of the 18th century. From the 17th century onwards the concept was associated with a population exceeding resources.
Hope this helped!
STSN</span>
Unfortunately this question is incomplete as the table is not visible. The table can be viewed here: <span>
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https://www.slideshare.net/smullen57/53-classification-and-biodiversitydoc
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All three species share the same taxonomy down to the level of Order: Kingdom Animalia, Phylum Chordata, Class, Mammalia, Order Carnivora.The ferret is in a different family: Mustelidae whereas both the bobcat and domestic cat are in the same family: Felidae and Genus: Felis. Therefore, the bobcat and domestic cat are more related by two branches in the taxonomic hierarchy.</span></span></span></span></span></span><span><span>
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Answer:
Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins. Without proteins, plants wither and die.
