BIO 121 Final Exam Review 2024 - Comprehensive Study Guide & Practice Questions

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BIO 121 FINAL EXAM
REVIEW 2025 / EXAM
QUESTIONS AND CORRECT
ANSWERS
Exam questions and answers professor verified

25

, 1. What is the hierarchy of life from largest to smallest?

Biosphere-Ecosystem-Community-Population-Organism-Organ system-Organ-Tissue-Cells-
Organelle-Molecule-Atom

2. A current example of natural selection is

The bacteria that has become drug resistant

3. The usual process for the scientific method is:

Observation-question-hypothesis-prediction-experiment-results-conclusion

4. Starch is a reserve polysaccharide made up of _____ subunits

Gluclose

5. Monosaccharides are to polysacharides as ______ are to _______

Amino acids; proteins

6. All organic molecules contain:

Carbon

7. In polar covalent bonding, electrons are ______ ______ between two atoms

shared unequally

8. I have an element alpha with an atomic number of 10 and I have another element beta
with the same number of protons but has 3 more neutrons than alpha. What is the
atomic number of beta?

10

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Written in: 2025/2026
Type: Exam (elaborations)
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