The true answer of your question is :
OH : HYDROXYL GROUP
NH2 : AMINO GROUP
CH3 : METHYL GROUP ( but in rather broader terms, that functional group of formula CnH2n+1 where n is an integer is called ALKYL GROUP where by substituting n by 1,2,3... we obtain methyl for n = 1, ethyl for n = 2, and propyl for n = 3 )
COOH : CARBOXYL GROUP is the correct answer since carbonyl is characterized by the presence of functional group C=O in general the formula of the compound would be
R-C=O-R’ where R and R’ are alkyl groups like methyl for example. However the carboxyl group could be thought of as a summation of carbonyl + hydroxyl ( CO + OH ) resulting thus in COOH.
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Food web provides a better model of an ecosystem and model of many different consumers
The Type O blood group is commonly called as universal donor because any blood group can receive the O blood group. The blood group O has no antigen. Due to the absence of antigen it doesn't agglutinate when come in contact with other blood groups in the plasma.
The agglutination reaction happens when opposite antigen and antibody reacts with each other. e.g.- Blood group A contains antigen A and antibody b and the blood group B contains antigen B and antibody a. Agglutination reaction occurs when the antigen A reacts with antibody a. As O blood group has no antigen, agglutination reaction doesn't occur.
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There are several reasons why it might be a good idea to write down your ideas and discoveries when you perform initial research on a topic. First, when you begin your research, you might get a lot of questions and doubts because you are not familiar with the topic. If you write these down, you are more likely to seek answers to these questions later on and gain a better understanding of them. Second, your initial ideas might not be all good, but they might lead you towards a good thesis. Writing them down ensures that these are not lost. Finally, by writing down your ideas and thoughts you actively engage with the subject, leading you to a better understanding of it.
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