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nirvana33 [79]
2 years ago
7

Define “science” in 20 words

Biology
1 answer:
sladkih [1.3K]2 years ago
7 0
“the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment”.
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The seeds of leguminous plants are a source of proteins. Nitrogen - fixing bacteria live in the roots of such plants. Do you thi
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Yes, Only bacteria can convert molecular nitrogen, into a form which can be utilized by other living beings such as plants. The nitrogen fixed by the bacteria, by this process, become available to the plants, which uptakes it, for their own growth, and is also accumulated in their seeds. Further, leguminous plants have nitrogen-fixing bacteria associated with them in synergy. They provide the plant with additional nitrogen, and in exchange obtain nutrients from the plant, for their growth and division.

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3 years ago
How is energy stored in ATP?
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When the bond between the second and third phosphate group is broken in ATP, ADP is formed and energy is released. This energy can power the cell's functions.
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3 years ago
Which mutation is an example of an insertion mutation?
Burka [1]

Answer:

d. AAU CCG CAU UGG A​

Explanation:

A mutation is any change or alteration to the sequence of a gene. There are, however, different types of mutation depending on how it occurs in the gene. One of these types is INSERTION MUTATION as mentioned in this question. Insertion mutation is a type of mutation in which one or more nucleotide base is added to the sequence, hence, changing the reading frame of the original sequence.

In this question, the original mRNA sequence is given as: AAU CCG CAU GGA.

An insertion mutation will cause nucleotide base(s) to be added to this sequence, which will be noticed by an increase in number of bases in the sequence.

The correct answer is: AAU CCG CAU UGG A​. In this mutated sequence, nucleotide "U" has been added to the sequence.

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2 years ago
Which factor decreases the rate of a chemical reaction
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Factors that influence the reaction rates of chemical reactions include theconcentration<span> of reactants, </span>temperature<span>, the physical state of reactants and their dispersion, the solvent, and the presence of a catalyst</span>
5 0
3 years ago
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Which factor is MOST likely to have contributed to the high fertility rate in Africa?
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The answer is B. Poor access to medical care

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