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MrRa [10]
3 years ago
10

These particles make the nucleus of the atom stable

Biology
1 answer:
Radda [10]3 years ago
4 0

Answer:

An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.

Explanation:

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Hypothesis is the answer
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14: Operons allow prokaryotes to replicate DNA at the appropriate time.

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3 years ago
Name two nutrients that plants need.
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Answer:

Sunlight and water.

Explanation:

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Minerals are also required by plants in order to function properly including calcium, potassium, iron, magnesium just to name a few minerals which are found in healthy nutritious produce!

5 0
2 years ago
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The first line of defense against pathogens includes:
bagirrra123 [75]

Answer: Option B

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Example: Skin and mucous membrane.

Skin is largest organ and it acts as a barrier between pathogens and human body. It acts a waterproof material and the pathogens cannot get inside through skin unless the skin is broken.

Mucous membranes also acts as first line of defense and breaks the cell wall of many bacteria entering through the openings of the body.

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8 0
3 years ago
During infection, C. diphtheriae expresses a variety of genes that are used to establish infection and cause disease. One of the
galina1969 [7]

Answer:

B. AUU CGC AUC UUG AAC

Explanation:

<em>According to the rule of base pairing in DNA, the pyrimidine bases always pair with purine bases. Specifically, adenine (A) always pair with thymine (T) while Guanine (G) always pair with cytosine (C). In RNA, thymine is replaced by uracil (U).</em>

Hence, TAA GCG TAG AAC TTG  will give

             AUU CGC AUC UUG AAC.

The correct option is B.

3 0
3 years ago
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