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natulia [17]
3 years ago
15

A person whose blood tests show neither protein A nor protein B present has blood type: 1.O 2.A 3. AB URGENTTTTTTT IN A QUIZ

Biology
1 answer:
Llana [10]3 years ago
8 0

1, O because if either shows present it's O.

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7 0
3 years ago
Read 2 more answers
How many neutrons does the element sodium (Na) contain?
sweet-ann [11.9K]

Answer:

a) 12 neutrons

Explanation:

The atomic mass is 22.990, which can be rounded to 23 and is the combination of protons and neutrons. The atomic number is 11 (protons), and 23-11=12, whoch would be the neutron number

Hope this helps :)

8 0
3 years ago
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