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BIO 121 Exam 1: 60 Verified Questions & Answers from Chapters 2-5 (Fall 2024) R251,57   Add to cart

Exam (elaborations)

BIO 121 Exam 1: 60 Verified Questions & Answers from Chapters 2-5 (Fall 2024)

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Get ready for your BIO 121 exam with actual questions from Fall 2024! This resource includes 60 well-designed questions and answers from Campbell Biology, 12th Edition, making it ideal for reviewing Chapters 2, 3, 4, and 5. | Bindiya Kaushal

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  • September 26, 2024
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  • 2024/2025
  • Exam (elaborations)
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BIO 121 Exam 1

, BIO 121 Exam 1 (60 Questions with Answers)


1. A(n) ________ has charge but negligible mass, whereas a(n) ________ has mass

but no charge.

A) Proton; neutron

B) Neutron; proton

C) Neutron; electron

D) Electron; neutron

Answer: D

2. A neutral atom has two, eight, eight electrons in its first, second, and third energy

levels. This information ________.

A) does not tell us about the atomic number of the element

B) does not tell us about the chemical properties of the element

C) does not tell us about the atomic mass of the element

D) does not tell us about the size of the element

Answer: C

, 3. Which one of the atoms shown would be most likely to form a cation with a charge of

+1? A)




B)




C)




D)




Answer: A



4. Which four elements make up approximately 96% of living matter?

A. Carbon, Oxygen, Nitrogen, and phosphate

B Carbon, sodium, chlorine, magnesium

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