The best and most correct answer among the choices provided by your question is the third choice or letter C.
Archaeologists believed that the function of signature seals was to be used by t<span>ax officials used them as receipts for payment of taxes.</span>
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Answer:
False
Explanation:
Humans:
Nitrogen is represented by the symbol N. It is abundant in the environment but humans can't use it directly from air or soil but depends upon green plants and microbes to convert it in to the usable form for using it
Plants:
Plants do not get their nitrogen directly from the air. Although nitrogen is the most abundant element in the air, every nitrogen atom in the air is triple-bonded to another nitrogen atom to form molecular nitrogen, N2
Answer:
other living things cannot use the nitrogen in plants.
Explanation:
Indeed, steroid hormones have an important role in the well-being of the individual through specialized cells (having specific receptors). Take the example of vitamin D.
Vitamin D is involved in calcium and phosphorus absorption by the intestines, as well as in their reabsorption by the kidneys. It is involved also in bone mineralization of the skeleton and joints, as well as on muscle tone.
The mechanism of action of the hormone is identical to the scheme:
Its carrier is vitamin D-binding protein
The cell may be an intestinal cell, bone cells or renal cells.
The vitamin acts on the DNA is activating / inhibiting certain genes encoding proteins so as to increase the level of calcium in blood.
The order of classification is as follows, from largest to smallest: Kingdom, Phylum, Class, Order, Family, Genus, Species.
So your answer will be Family, Genus and Species.
