Answer:
This new food is a carbohydrate
Explanation:
<em>Carbohydrates (also known as saccharide) general formula is CH2On, this means they are molecules that only contain carbon (C), hydrogen (H) and oxygen (O). </em>In the basic form, these sugars are known as monosaccharides, they can combine no form more complex sugars like disaccharide (2), oligosaccharides (2-10) or polysaccharides (>10).
Therefore we can conclude that this new food is a carbohydrate.
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Answer:
I believe that the protists were the first organisms on earth. And the other 5 kingdoms then came from the protists.
I think that's it! :)
Answer:
(d). B-cells.
Explanation:
Adaptive immunity can be described as immunity which develops in response to exposure to a pathogen (or foreign molecule). throughout the life. It is divided into two types, humoral immunity and cell-mediated immunity.
Humoral immunity is mediated by B cells that secrete antibodies against particular antigens. These antibodies recognize and neutralize the antigens and activate cell-mediated immunity, which is mediated by T cells.
Thus, the correct answer is option (d).