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book Biology 2nd Edition by Robert Brooker, Eric Widmaier ,Linda Graham ,Peter Stiling cover

Biology 2nd Edition by Robert Brooker, Eric Widmaier ,Linda Graham ,Peter Stiling

النسخة 2الرقم المعياري الدولي: 978-0073532219
book Biology 2nd Edition by Robert Brooker, Eric Widmaier ,Linda Graham ,Peter Stiling cover

Biology 2nd Edition by Robert Brooker, Eric Widmaier ,Linda Graham ,Peter Stiling

النسخة 2الرقم المعياري الدولي: 978-0073532219
تمرين 4
_____________________ make(s) up the nucleus of an atom.
A) Protons and electrons
B) Protons and neutrons
C) DNA and RNA
D) Neutrons and electrons
E) DNA only
التوضيح
موثّق
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Hence, the correct answer is option (b) ...

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Biology 2nd Edition by Robert Brooker, Eric Widmaier ,Linda Graham ,Peter Stiling
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