LAB EXAM 3 (Latest Update 2025 /
2026) Anatomy and Physiology IV with
Lab | Questions & Answers | 100% Correct
| Grade A - Chamberlain
1. What is taxonomy?
A. Study of cells
B. Classification of organisms
C. Study of DNA
D. Study of tissues
Correct Answer: B. Classification of organisms
Rationale: Taxonomy is the science of naming and classifying
organisms.
2. Who developed the binomial nomenclature system?
A. Darwin
B. Mendel
C. Linnaeus
D. Watson
,Correct Answer: C. Linnaeus
Rationale: Carl Linnaeus introduced the binomial naming system.
3. What is binomial nomenclature?
A. One name system
B. Two-name system
C. Three-name system
D. Code system
Correct Answer: B. Two-name system
Rationale: It uses genus and species names.
4. What is the correct format of scientific names?
A. lowercase
B. uppercase
C. Genus capitalized, species lowercase
D. Species capitalized
Correct Answer: C. Genus capitalized, species lowercase
Rationale: This is the standard scientific naming convention.
5. What is the broadest taxonomic level?
A. Species
B. Genus
C. Kingdom
D. Domain
,Correct Answer: D. Domain
Rationale: Domain is the highest level of classification.
6. What is the smallest classification level?
A. Kingdom
B. Class
C. Species
D. Phylum
Correct Answer: C. Species
Rationale: Species is the most specific classification.
7. What is a dichotomous key?
A. DNA test
B. Identification tool
C. Cell structure
D. Enzyme
Correct Answer: B. Identification tool
Rationale: It helps identify organisms using paired choices.
8. What is phylogeny?
A. Cell study
B. Evolutionary history
C. Tissue study
D. Classification
, Correct Answer: B. Evolutionary history
Rationale: Phylogeny shows relationships among organisms.
9. What is a clade?
A. Single organism
B. Group with common ancestor
C. Tissue
D. Organ
Correct Answer: B. Group with common ancestor
Rationale: Clades include organisms with shared ancestry.
10. What is a phylogenetic tree?
A. Plant
B. Evolution diagram
C. DNA
D. Tissue
Correct Answer: B. Evolution diagram
Rationale: It represents evolutionary relationships.
11. What are prokaryotes?
A. Cells with nucleus
B. Cells without nucleus
C. Plant cells
D. Animal cells