- The term “binomial nomenclature” was introduced by:
a) Charles Darwin
b) Aristotle
c) Carl Linnaeus
d) Ernst Mayr
Answer: c) Carl Linnaeus
Explanation:
Carl Linnaeus introduced the binomial nomenclature system, giving every species a two-part scientific name (genus and species).
- Which of the following is an example of a eukaryotic autotrophic organism?
a) Fungi
b) Bacteria
c) Plants
d) Protozoa
Answer: c) Plants
Explanation:
Plants are eukaryotic autotrophs, meaning they have a true nucleus and perform photosynthesis to produce their own food.
- All living organisms share which of the following characteristics?
a) They produce their own food
b) They exhibit metabolism
c) They can move
d) They live in groups
Answer: b) They exhibit metabolism
Explanation:
All living organisms exhibit metabolism, which includes all the chemical processes that occur within their cells to maintain life.
- Which of the following is NOT a taxonomic category?
a) Family
b) Class
c) Species
d) Population
Answer: d) Population
Explanation:
Population refers to a group of individuals of the same species living in the same area. It is not a taxonomic category, unlike family, class, and species.
- The science of naming, classifying, and describing organisms is called:
a) Ecology
b) Taxonomy
c) Genetics
d) Cytology
Answer: b) Taxonomy
Explanation:
Taxonomy is the branch of science that deals with the classification, description, and naming of organisms.
- In which of the following kingdoms do organisms lack a true nucleus?
a) Protista
b) Monera
c) Fungi
d) Animalia
Answer: b) Monera
Explanation:
The kingdom Monera consists of prokaryotic organisms, such as bacteria, which lack a true nucleus and membrane-bound organelles.
- Which of the following is the smallest unit of classification?
a) Species
b) Genus
c) Family
d) Order
Answer: a) Species
Explanation:
Species is the smallest and most specific unit of classification, defined as a group of organisms that can interbreed and produce fertile offspring.
- Which of the following is NOT true for viruses?
a) They are acellular
b) They cannot reproduce outside a host cell
c) They have both RNA and DNA
d) They can infect plants, animals, and bacteria
Answer: c) They have both RNA and DNA
Explanation:
Viruses contain either RNA or DNA, but never both at the same time. They are obligate parasites and require a host cell for replication.
- Which of the following is the largest and most inclusive taxonomic category?
a) Species
b) Class
c) Kingdom
d) Phylum
Answer: c) Kingdom
Explanation:
Kingdom is the broadest taxonomic category, encompassing the most diverse groups of organisms, such as animals, plants, fungi, protists, and monerans.
- Which one of the following criteria is NOT used for modern biological classification?
a) Evolutionary relationships
b) Anatomical similarities
c) Habitat
d) Molecular data
Answer: c) Habitat
Explanation:
Modern biological classification is based on evolutionary relationships, anatomical similarities, and molecular data, rather than habitat.
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